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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; |
9544763d | 33 | import java.io.ByteArrayOutputStream; |
4328bb42 KL |
34 | import java.io.FileDescriptor; |
35 | import java.io.FileInputStream; | |
b1589621 KL |
36 | import java.io.InputStream; |
37 | import java.io.InputStreamReader; | |
38 | import java.io.IOException; | |
39 | import java.io.OutputStream; | |
40 | import java.io.OutputStreamWriter; | |
41 | import java.io.PrintWriter; | |
42 | import java.io.Reader; | |
43 | import java.io.UnsupportedEncodingException; | |
44 | import java.util.ArrayList; | |
a69ed767 KL |
45 | import java.util.Collections; |
46 | import java.util.HashMap; | |
b1589621 | 47 | import java.util.List; |
9544763d | 48 | import javax.imageio.ImageIO; |
b1589621 | 49 | |
a69ed767 | 50 | import jexer.TImage; |
42873e30 KL |
51 | import jexer.bits.Cell; |
52 | import jexer.bits.CellAttributes; | |
b1589621 | 53 | import jexer.bits.Color; |
abb84744 | 54 | import jexer.event.TCommandEvent; |
b1589621 KL |
55 | import jexer.event.TInputEvent; |
56 | import jexer.event.TKeypressEvent; | |
57 | import jexer.event.TMouseEvent; | |
58 | import jexer.event.TResizeEvent; | |
abb84744 | 59 | import static jexer.TCommand.*; |
b1589621 KL |
60 | import static jexer.TKeypress.*; |
61 | ||
62 | /** | |
7b5261bc KL |
63 | * This class reads keystrokes and mouse events and emits output to ANSI |
64 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 65 | */ |
051e2913 KL |
66 | public class ECMA48Terminal extends LogicalScreen |
67 | implements TerminalReader, Runnable { | |
42873e30 | 68 | |
d36057df KL |
69 | // ------------------------------------------------------------------------ |
70 | // Constants -------------------------------------------------------------- | |
71 | // ------------------------------------------------------------------------ | |
72 | ||
73 | /** | |
74 | * States in the input parser. | |
75 | */ | |
76 | private enum ParseState { | |
77 | GROUND, | |
78 | ESCAPE, | |
79 | ESCAPE_INTERMEDIATE, | |
80 | CSI_ENTRY, | |
81 | CSI_PARAM, | |
82 | MOUSE, | |
83 | MOUSE_SGR, | |
84 | } | |
85 | ||
86 | // ------------------------------------------------------------------------ | |
87 | // Variables -------------------------------------------------------------- | |
88 | // ------------------------------------------------------------------------ | |
89 | ||
42873e30 KL |
90 | /** |
91 | * Emit debugging to stderr. | |
92 | */ | |
93 | private boolean debugToStderr = false; | |
b1589621 | 94 | |
15ea4d73 | 95 | /** |
051e2913 KL |
96 | * If true, emit T.416-style RGB colors for normal system colors. This |
97 | * is a) expensive in bandwidth, and b) potentially terrible looking for | |
98 | * non-xterms. | |
15ea4d73 KL |
99 | */ |
100 | private static boolean doRgbColor = false; | |
101 | ||
b1589621 | 102 | /** |
7b5261bc KL |
103 | * The session information. |
104 | */ | |
105 | private SessionInfo sessionInfo; | |
106 | ||
4328bb42 | 107 | /** |
7b5261bc | 108 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
109 | */ |
110 | private List<TInputEvent> eventQueue; | |
111 | ||
112 | /** | |
113 | * If true, we want the reader thread to exit gracefully. | |
114 | */ | |
115 | private boolean stopReaderThread; | |
116 | ||
117 | /** | |
7b5261bc | 118 | * The reader thread. |
4328bb42 KL |
119 | */ |
120 | private Thread readerThread; | |
121 | ||
b1589621 KL |
122 | /** |
123 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
124 | * params[0] will be 1 and params[1] will be 3. | |
125 | */ | |
d36057df | 126 | private List<String> params; |
b1589621 KL |
127 | |
128 | /** | |
7b5261bc | 129 | * Current parsing state. |
b1589621 KL |
130 | */ |
131 | private ParseState state; | |
132 | ||
133 | /** | |
7b5261bc KL |
134 | * The time we entered ESCAPE. If we get a bare escape without a code |
135 | * following it, this is used to return that bare escape. | |
b1589621 KL |
136 | */ |
137 | private long escapeTime; | |
138 | ||
a83fea2b KL |
139 | /** |
140 | * The time we last checked the window size. We try not to spawn stty | |
141 | * more than once per second. | |
142 | */ | |
143 | private long windowSizeTime; | |
144 | ||
b1589621 KL |
145 | /** |
146 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
147 | */ | |
148 | private boolean mouse1; | |
149 | ||
150 | /** | |
151 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
152 | */ | |
153 | private boolean mouse2; | |
154 | ||
155 | /** | |
156 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
157 | */ | |
158 | private boolean mouse3; | |
159 | ||
160 | /** | |
161 | * Cache the cursor visibility value so we only emit the sequence when we | |
162 | * need to. | |
163 | */ | |
164 | private boolean cursorOn = true; | |
165 | ||
166 | /** | |
167 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
168 | * generated. | |
169 | */ | |
170 | private TResizeEvent windowResize = null; | |
171 | ||
772b8255 KL |
172 | /** |
173 | * If true, emit wide-char (CJK/Emoji) characters as sixel images. | |
174 | */ | |
175 | private boolean wideCharImages = true; | |
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 | */ | |
9544763d | 200 | private ImageCache sixelCache = null; |
a69ed767 | 201 | |
a75902fa KL |
202 | /** |
203 | * Number of colors in the sixel palette. Xterm 335 defines the max as | |
204 | * 1024. Valid values are: 2 (black and white), 256, 512, 1024, and | |
205 | * 2048. | |
206 | */ | |
207 | private int sixelPaletteSize = 1024; | |
208 | ||
9544763d KL |
209 | /** |
210 | * If true, emit image data via iTerm2 image protocol. | |
211 | */ | |
212 | private boolean iterm2Images = false; | |
213 | ||
214 | /** | |
215 | * The iTerm2 post-rendered string cache. | |
216 | */ | |
217 | private ImageCache iterm2Cache = null; | |
218 | ||
219 | /** | |
220 | * Base64 encoder used by iTerm2 images. | |
221 | */ | |
222 | private java.util.Base64.Encoder base64 = null; | |
223 | ||
b1589621 KL |
224 | /** |
225 | * If true, then we changed System.in and need to change it back. | |
226 | */ | |
9544763d | 227 | private boolean setRawMode = false; |
b1589621 KL |
228 | |
229 | /** | |
230 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
231 | * constructor, then this InputStreamReader will be bound to System.in |
232 | * with UTF-8 encoding. | |
b1589621 KL |
233 | */ |
234 | private Reader input; | |
235 | ||
4328bb42 KL |
236 | /** |
237 | * The terminal's raw InputStream. If an InputStream is not specified in | |
238 | * the constructor, then this InputReader will be bound to System.in. | |
239 | * This is used by run() to see if bytes are available() before calling | |
240 | * (Reader)input.read(). | |
241 | */ | |
242 | private InputStream inputStream; | |
243 | ||
b1589621 KL |
244 | /** |
245 | * The terminal's output. If an OutputStream is not specified in the | |
246 | * constructor, then this PrintWriter will be bound to System.out with | |
247 | * UTF-8 encoding. | |
248 | */ | |
249 | private PrintWriter output; | |
250 | ||
92554d64 KL |
251 | /** |
252 | * The listening object that run() wakes up on new input. | |
253 | */ | |
254 | private Object listener; | |
255 | ||
d91ac0f5 KL |
256 | // Colors to map DOS colors to AWT colors. |
257 | private static java.awt.Color MYBLACK; | |
258 | private static java.awt.Color MYRED; | |
259 | private static java.awt.Color MYGREEN; | |
260 | private static java.awt.Color MYYELLOW; | |
261 | private static java.awt.Color MYBLUE; | |
262 | private static java.awt.Color MYMAGENTA; | |
263 | private static java.awt.Color MYCYAN; | |
264 | private static java.awt.Color MYWHITE; | |
265 | private static java.awt.Color MYBOLD_BLACK; | |
266 | private static java.awt.Color MYBOLD_RED; | |
267 | private static java.awt.Color MYBOLD_GREEN; | |
268 | private static java.awt.Color MYBOLD_YELLOW; | |
269 | private static java.awt.Color MYBOLD_BLUE; | |
270 | private static java.awt.Color MYBOLD_MAGENTA; | |
271 | private static java.awt.Color MYBOLD_CYAN; | |
272 | private static java.awt.Color MYBOLD_WHITE; | |
273 | ||
a69ed767 KL |
274 | /** |
275 | * SixelPalette is used to manage the conversion of images between 24-bit | |
a75902fa | 276 | * RGB color and a palette of sixelPaletteSize colors. |
a69ed767 KL |
277 | */ |
278 | private class SixelPalette { | |
279 | ||
280 | /** | |
281 | * Color palette for sixel output, sorted low to high. | |
282 | */ | |
283 | private List<Integer> rgbColors = new ArrayList<Integer>(); | |
284 | ||
285 | /** | |
286 | * Map of color palette index for sixel output, from the order it was | |
287 | * generated by makePalette() to rgbColors. | |
288 | */ | |
a75902fa | 289 | private int [] rgbSortedIndex = new int[sixelPaletteSize]; |
a69ed767 KL |
290 | |
291 | /** | |
292 | * The color palette, organized by hue, saturation, and luminance. | |
293 | * This is used for a fast color match. | |
294 | */ | |
295 | private ArrayList<ArrayList<ArrayList<ColorIdx>>> hslColors; | |
296 | ||
297 | /** | |
298 | * Number of bits for hue. | |
299 | */ | |
300 | private int hueBits = -1; | |
301 | ||
302 | /** | |
303 | * Number of bits for saturation. | |
304 | */ | |
305 | private int satBits = -1; | |
306 | ||
307 | /** | |
308 | * Number of bits for luminance. | |
309 | */ | |
310 | private int lumBits = -1; | |
311 | ||
312 | /** | |
313 | * Step size for hue bins. | |
314 | */ | |
315 | private int hueStep = -1; | |
316 | ||
317 | /** | |
318 | * Step size for saturation bins. | |
319 | */ | |
320 | private int satStep = -1; | |
321 | ||
322 | /** | |
323 | * Cached RGB to HSL result. | |
324 | */ | |
325 | private int hsl[] = new int[3]; | |
326 | ||
327 | /** | |
328 | * ColorIdx records a RGB color and its palette index. | |
329 | */ | |
330 | private class ColorIdx { | |
331 | /** | |
332 | * The 24-bit RGB color. | |
333 | */ | |
334 | public int color; | |
335 | ||
336 | /** | |
337 | * The palette index for this color. | |
338 | */ | |
339 | public int index; | |
340 | ||
341 | /** | |
342 | * Public constructor. | |
343 | * | |
344 | * @param color the 24-bit RGB color | |
345 | * @param index the palette index for this color | |
346 | */ | |
347 | public ColorIdx(final int color, final int index) { | |
348 | this.color = color; | |
349 | this.index = index; | |
350 | } | |
351 | } | |
352 | ||
353 | /** | |
354 | * Public constructor. | |
355 | */ | |
356 | public SixelPalette() { | |
357 | makePalette(); | |
358 | } | |
359 | ||
360 | /** | |
361 | * Find the nearest match for a color in the palette. | |
362 | * | |
363 | * @param color the RGB color | |
364 | * @return the index in rgbColors that is closest to color | |
365 | */ | |
366 | public int matchColor(final int color) { | |
367 | ||
368 | assert (color >= 0); | |
369 | ||
370 | /* | |
371 | * matchColor() is a critical performance bottleneck. To make it | |
372 | * decent, we do the following: | |
373 | * | |
374 | * 1. Find the nearest two hues that bracket this color. | |
375 | * | |
376 | * 2. Find the nearest two saturations that bracket this color. | |
377 | * | |
378 | * 3. Iterate within these four bands of luminance values, | |
379 | * returning the closest color by Euclidean distance. | |
380 | * | |
381 | * This strategy reduces the search space by about 97%. | |
382 | */ | |
383 | int red = (color >>> 16) & 0xFF; | |
384 | int green = (color >>> 8) & 0xFF; | |
385 | int blue = color & 0xFF; | |
386 | ||
a75902fa | 387 | if (sixelPaletteSize == 2) { |
f5b7a696 KL |
388 | if (((red * red) + (green * green) + (blue * blue)) < 35568) { |
389 | // Black | |
390 | return 0; | |
391 | } | |
392 | // White | |
393 | return 1; | |
394 | } | |
395 | ||
396 | ||
a69ed767 KL |
397 | rgbToHsl(red, green, blue, hsl); |
398 | int hue = hsl[0]; | |
399 | int sat = hsl[1]; | |
400 | int lum = hsl[2]; | |
401 | // System.err.printf("%d %d %d\n", hue, sat, lum); | |
402 | ||
403 | double diff = Double.MAX_VALUE; | |
404 | int idx = -1; | |
405 | ||
406 | int hue1 = hue / (360/hueStep); | |
407 | int hue2 = hue1 + 1; | |
408 | if (hue1 >= hslColors.size() - 1) { | |
409 | // Bracket pure red from above. | |
410 | hue1 = hslColors.size() - 1; | |
411 | hue2 = 0; | |
412 | } else if (hue1 == 0) { | |
413 | // Bracket pure red from below. | |
414 | hue2 = hslColors.size() - 1; | |
415 | } | |
416 | ||
417 | for (int hI = hue1; hI != -1;) { | |
418 | ArrayList<ArrayList<ColorIdx>> sats = hslColors.get(hI); | |
419 | if (hI == hue1) { | |
420 | hI = hue2; | |
421 | } else if (hI == hue2) { | |
422 | hI = -1; | |
423 | } | |
424 | ||
425 | int sMin = (sat / satStep) - 1; | |
426 | int sMax = sMin + 1; | |
427 | if (sMin < 0) { | |
428 | sMin = 0; | |
429 | sMax = 1; | |
430 | } else if (sMin == sats.size() - 1) { | |
431 | sMax = sMin; | |
432 | sMin--; | |
433 | } | |
434 | assert (sMin >= 0); | |
435 | assert (sMax - sMin == 1); | |
436 | ||
437 | // int sMin = 0; | |
438 | // int sMax = sats.size() - 1; | |
439 | ||
440 | for (int sI = sMin; sI <= sMax; sI++) { | |
441 | ArrayList<ColorIdx> lums = sats.get(sI); | |
442 | ||
443 | // True 3D colorspace match for the remaining values | |
444 | for (ColorIdx c: lums) { | |
445 | int rgbColor = c.color; | |
446 | double newDiff = 0; | |
447 | int red2 = (rgbColor >>> 16) & 0xFF; | |
448 | int green2 = (rgbColor >>> 8) & 0xFF; | |
449 | int blue2 = rgbColor & 0xFF; | |
450 | newDiff += Math.pow(red2 - red, 2); | |
451 | newDiff += Math.pow(green2 - green, 2); | |
452 | newDiff += Math.pow(blue2 - blue, 2); | |
453 | if (newDiff < diff) { | |
454 | idx = rgbSortedIndex[c.index]; | |
455 | diff = newDiff; | |
456 | } | |
457 | } | |
458 | } | |
459 | } | |
460 | ||
461 | if (((red * red) + (green * green) + (blue * blue)) < diff) { | |
462 | // Black is a closer match. | |
463 | idx = 0; | |
464 | } else if ((((255 - red) * (255 - red)) + | |
465 | ((255 - green) * (255 - green)) + | |
466 | ((255 - blue) * (255 - blue))) < diff) { | |
467 | ||
468 | // White is a closer match. | |
a75902fa | 469 | idx = sixelPaletteSize - 1; |
a69ed767 KL |
470 | } |
471 | assert (idx != -1); | |
472 | return idx; | |
473 | } | |
474 | ||
475 | /** | |
476 | * Clamp an int value to [0, 255]. | |
477 | * | |
478 | * @param x the int value | |
479 | * @return an int between 0 and 255. | |
480 | */ | |
481 | private int clamp(final int x) { | |
482 | if (x < 0) { | |
483 | return 0; | |
484 | } | |
485 | if (x > 255) { | |
486 | return 255; | |
487 | } | |
488 | return x; | |
489 | } | |
490 | ||
491 | /** | |
a75902fa | 492 | * Dither an image to a sixelPaletteSize palette. The dithered |
a69ed767 KL |
493 | * image cells will contain indexes into the palette. |
494 | * | |
495 | * @param image the image to dither | |
496 | * @return the dithered image. Every pixel is an index into the | |
497 | * palette. | |
498 | */ | |
499 | public BufferedImage ditherImage(final BufferedImage image) { | |
500 | ||
501 | BufferedImage ditheredImage = new BufferedImage(image.getWidth(), | |
502 | image.getHeight(), BufferedImage.TYPE_INT_ARGB); | |
503 | ||
504 | int [] rgbArray = image.getRGB(0, 0, image.getWidth(), | |
505 | image.getHeight(), null, 0, image.getWidth()); | |
506 | ditheredImage.setRGB(0, 0, image.getWidth(), image.getHeight(), | |
507 | rgbArray, 0, image.getWidth()); | |
508 | ||
509 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
510 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
511 | int oldPixel = ditheredImage.getRGB(imageX, | |
512 | imageY) & 0xFFFFFF; | |
513 | int colorIdx = matchColor(oldPixel); | |
514 | assert (colorIdx >= 0); | |
a75902fa | 515 | assert (colorIdx < sixelPaletteSize); |
a69ed767 KL |
516 | int newPixel = rgbColors.get(colorIdx); |
517 | ditheredImage.setRGB(imageX, imageY, colorIdx); | |
518 | ||
519 | int oldRed = (oldPixel >>> 16) & 0xFF; | |
520 | int oldGreen = (oldPixel >>> 8) & 0xFF; | |
521 | int oldBlue = oldPixel & 0xFF; | |
522 | ||
523 | int newRed = (newPixel >>> 16) & 0xFF; | |
524 | int newGreen = (newPixel >>> 8) & 0xFF; | |
525 | int newBlue = newPixel & 0xFF; | |
526 | ||
527 | int redError = (oldRed - newRed) / 16; | |
528 | int greenError = (oldGreen - newGreen) / 16; | |
529 | int blueError = (oldBlue - newBlue) / 16; | |
530 | ||
531 | int red, green, blue; | |
532 | if (imageX < image.getWidth() - 1) { | |
533 | int pXpY = ditheredImage.getRGB(imageX + 1, imageY); | |
9696a8f6 KL |
534 | red = ((pXpY >>> 16) & 0xFF) + (7 * redError); |
535 | green = ((pXpY >>> 8) & 0xFF) + (7 * greenError); | |
536 | blue = ( pXpY & 0xFF) + (7 * blueError); | |
a69ed767 KL |
537 | red = clamp(red); |
538 | green = clamp(green); | |
539 | blue = clamp(blue); | |
540 | pXpY = ((red & 0xFF) << 16); | |
541 | pXpY |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
542 | ditheredImage.setRGB(imageX + 1, imageY, pXpY); | |
543 | ||
544 | if (imageY < image.getHeight() - 1) { | |
545 | int pXpYp = ditheredImage.getRGB(imageX + 1, | |
546 | imageY + 1); | |
9696a8f6 KL |
547 | red = ((pXpYp >>> 16) & 0xFF) + redError; |
548 | green = ((pXpYp >>> 8) & 0xFF) + greenError; | |
549 | blue = ( pXpYp & 0xFF) + blueError; | |
a69ed767 KL |
550 | red = clamp(red); |
551 | green = clamp(green); | |
552 | blue = clamp(blue); | |
553 | pXpYp = ((red & 0xFF) << 16); | |
554 | pXpYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
555 | ditheredImage.setRGB(imageX + 1, imageY + 1, pXpYp); | |
556 | } | |
557 | } else if (imageY < image.getHeight() - 1) { | |
558 | int pXmYp = ditheredImage.getRGB(imageX - 1, | |
559 | imageY + 1); | |
560 | int pXYp = ditheredImage.getRGB(imageX, | |
561 | imageY + 1); | |
562 | ||
9696a8f6 KL |
563 | red = ((pXmYp >>> 16) & 0xFF) + (3 * redError); |
564 | green = ((pXmYp >>> 8) & 0xFF) + (3 * greenError); | |
565 | blue = ( pXmYp & 0xFF) + (3 * blueError); | |
a69ed767 KL |
566 | red = clamp(red); |
567 | green = clamp(green); | |
568 | blue = clamp(blue); | |
569 | pXmYp = ((red & 0xFF) << 16); | |
570 | pXmYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
571 | ditheredImage.setRGB(imageX - 1, imageY + 1, pXmYp); | |
572 | ||
9696a8f6 KL |
573 | red = ((pXYp >>> 16) & 0xFF) + (5 * redError); |
574 | green = ((pXYp >>> 8) & 0xFF) + (5 * greenError); | |
575 | blue = ( pXYp & 0xFF) + (5 * blueError); | |
a69ed767 KL |
576 | red = clamp(red); |
577 | green = clamp(green); | |
578 | blue = clamp(blue); | |
579 | pXYp = ((red & 0xFF) << 16); | |
580 | pXYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
581 | ditheredImage.setRGB(imageX, imageY + 1, pXYp); | |
582 | } | |
583 | } // for (int imageY = 0; imageY < image.getHeight(); imageY++) | |
584 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) | |
585 | ||
586 | return ditheredImage; | |
587 | } | |
588 | ||
589 | /** | |
590 | * Convert an RGB color to HSL. | |
591 | * | |
592 | * @param red red color, between 0 and 255 | |
593 | * @param green green color, between 0 and 255 | |
594 | * @param blue blue color, between 0 and 255 | |
595 | * @param hsl the hsl color as [hue, saturation, luminance] | |
596 | */ | |
597 | private void rgbToHsl(final int red, final int green, | |
598 | final int blue, final int [] hsl) { | |
599 | ||
600 | assert ((red >= 0) && (red <= 255)); | |
601 | assert ((green >= 0) && (green <= 255)); | |
602 | assert ((blue >= 0) && (blue <= 255)); | |
603 | ||
604 | double R = red / 255.0; | |
605 | double G = green / 255.0; | |
606 | double B = blue / 255.0; | |
607 | boolean Rmax = false; | |
608 | boolean Gmax = false; | |
609 | boolean Bmax = false; | |
610 | double min = (R < G ? R : G); | |
611 | min = (min < B ? min : B); | |
612 | double max = 0; | |
613 | if ((R >= G) && (R >= B)) { | |
614 | max = R; | |
615 | Rmax = true; | |
616 | } else if ((G >= R) && (G >= B)) { | |
617 | max = G; | |
618 | Gmax = true; | |
619 | } else if ((B >= G) && (B >= R)) { | |
620 | max = B; | |
621 | Bmax = true; | |
622 | } | |
623 | ||
624 | double L = (min + max) / 2.0; | |
625 | double H = 0.0; | |
626 | double S = 0.0; | |
627 | if (min != max) { | |
628 | if (L < 0.5) { | |
629 | S = (max - min) / (max + min); | |
630 | } else { | |
631 | S = (max - min) / (2.0 - max - min); | |
632 | } | |
633 | } | |
634 | if (Rmax) { | |
635 | assert (Gmax == false); | |
636 | assert (Bmax == false); | |
637 | H = (G - B) / (max - min); | |
638 | } else if (Gmax) { | |
639 | assert (Rmax == false); | |
640 | assert (Bmax == false); | |
641 | H = 2.0 + (B - R) / (max - min); | |
642 | } else if (Bmax) { | |
643 | assert (Rmax == false); | |
644 | assert (Gmax == false); | |
645 | H = 4.0 + (R - G) / (max - min); | |
646 | } | |
647 | if (H < 0.0) { | |
648 | H += 6.0; | |
649 | } | |
650 | hsl[0] = (int) (H * 60.0); | |
651 | hsl[1] = (int) (S * 100.0); | |
652 | hsl[2] = (int) (L * 100.0); | |
653 | ||
654 | assert ((hsl[0] >= 0) && (hsl[0] <= 360)); | |
655 | assert ((hsl[1] >= 0) && (hsl[1] <= 100)); | |
656 | assert ((hsl[2] >= 0) && (hsl[2] <= 100)); | |
657 | } | |
658 | ||
659 | /** | |
660 | * Convert a HSL color to RGB. | |
661 | * | |
662 | * @param hue hue, between 0 and 359 | |
663 | * @param sat saturation, between 0 and 100 | |
664 | * @param lum luminance, between 0 and 100 | |
665 | * @return the rgb color as 0x00RRGGBB | |
666 | */ | |
667 | private int hslToRgb(final int hue, final int sat, final int lum) { | |
668 | assert ((hue >= 0) && (hue <= 360)); | |
669 | assert ((sat >= 0) && (sat <= 100)); | |
670 | assert ((lum >= 0) && (lum <= 100)); | |
671 | ||
672 | double S = sat / 100.0; | |
673 | double L = lum / 100.0; | |
674 | double C = (1.0 - Math.abs((2.0 * L) - 1.0)) * S; | |
675 | double Hp = hue / 60.0; | |
676 | double X = C * (1.0 - Math.abs((Hp % 2) - 1.0)); | |
677 | double Rp = 0.0; | |
678 | double Gp = 0.0; | |
679 | double Bp = 0.0; | |
680 | if (Hp <= 1.0) { | |
681 | Rp = C; | |
682 | Gp = X; | |
683 | } else if (Hp <= 2.0) { | |
684 | Rp = X; | |
685 | Gp = C; | |
686 | } else if (Hp <= 3.0) { | |
687 | Gp = C; | |
688 | Bp = X; | |
689 | } else if (Hp <= 4.0) { | |
690 | Gp = X; | |
691 | Bp = C; | |
692 | } else if (Hp <= 5.0) { | |
693 | Rp = X; | |
694 | Bp = C; | |
695 | } else if (Hp <= 6.0) { | |
696 | Rp = C; | |
697 | Bp = X; | |
698 | } | |
699 | double m = L - (C / 2.0); | |
700 | int red = ((int) ((Rp + m) * 255.0)) << 16; | |
701 | int green = ((int) ((Gp + m) * 255.0)) << 8; | |
702 | int blue = (int) ((Bp + m) * 255.0); | |
703 | ||
704 | return (red | green | blue); | |
705 | } | |
706 | ||
707 | /** | |
708 | * Create the sixel palette. | |
709 | */ | |
710 | private void makePalette() { | |
711 | // Generate the sixel palette. Because we have no idea at this | |
712 | // layer which image(s) will be shown, we have to use a common | |
a75902fa | 713 | // palette with sixelPaletteSize colors for everything, and |
a69ed767 KL |
714 | // map the BufferedImage colors to their nearest neighbor in RGB |
715 | // space. | |
716 | ||
a75902fa | 717 | if (sixelPaletteSize == 2) { |
f5b7a696 KL |
718 | rgbColors.add(0); |
719 | rgbColors.add(0xFFFFFF); | |
720 | rgbSortedIndex[0] = 0; | |
721 | rgbSortedIndex[1] = 1; | |
722 | return; | |
723 | } | |
724 | ||
a69ed767 KL |
725 | // We build a palette using the Hue-Saturation-Luminence model, |
726 | // with 5+ bits for Hue, 2+ bits for Saturation, and 1+ bit for | |
727 | // Luminance. We convert these colors to 24-bit RGB, sort them | |
728 | // ascending, and steal the first index for pure black and the | |
729 | // last for pure white. The 8-bit final palette favors bright | |
730 | // colors, somewhere between pastel and classic television | |
731 | // technicolor. 9- and 10-bit palettes are more uniform. | |
732 | ||
733 | // Default at 256 colors. | |
734 | hueBits = 5; | |
735 | satBits = 2; | |
736 | lumBits = 1; | |
737 | ||
a75902fa KL |
738 | assert (sixelPaletteSize >= 256); |
739 | assert ((sixelPaletteSize == 256) | |
740 | || (sixelPaletteSize == 512) | |
741 | || (sixelPaletteSize == 1024) | |
742 | || (sixelPaletteSize == 2048)); | |
a69ed767 | 743 | |
a75902fa | 744 | switch (sixelPaletteSize) { |
a69ed767 KL |
745 | case 512: |
746 | hueBits = 5; | |
747 | satBits = 2; | |
748 | lumBits = 2; | |
749 | break; | |
750 | case 1024: | |
751 | hueBits = 5; | |
752 | satBits = 2; | |
753 | lumBits = 3; | |
754 | break; | |
755 | case 2048: | |
756 | hueBits = 5; | |
757 | satBits = 3; | |
758 | lumBits = 3; | |
759 | break; | |
760 | } | |
761 | hueStep = (int) (Math.pow(2, hueBits)); | |
762 | satStep = (int) (100 / Math.pow(2, satBits)); | |
763 | // 1 bit for luminance: 40 and 70. | |
764 | int lumBegin = 40; | |
765 | int lumStep = 30; | |
766 | switch (lumBits) { | |
767 | case 2: | |
768 | // 2 bits: 20, 40, 60, 80 | |
769 | lumBegin = 20; | |
770 | lumStep = 20; | |
771 | break; | |
772 | case 3: | |
773 | // 3 bits: 8, 20, 32, 44, 56, 68, 80, 92 | |
774 | lumBegin = 8; | |
775 | lumStep = 12; | |
776 | break; | |
777 | } | |
778 | ||
779 | // System.err.printf("<html><body>\n"); | |
780 | // Hue is evenly spaced around the wheel. | |
781 | hslColors = new ArrayList<ArrayList<ArrayList<ColorIdx>>>(); | |
782 | ||
783 | final boolean DEBUG = false; | |
784 | ArrayList<Integer> rawRgbList = new ArrayList<Integer>(); | |
785 | ||
786 | for (int hue = 0; hue < (360 - (360 % hueStep)); | |
787 | hue += (360/hueStep)) { | |
788 | ||
789 | ArrayList<ArrayList<ColorIdx>> satList = null; | |
790 | satList = new ArrayList<ArrayList<ColorIdx>>(); | |
791 | hslColors.add(satList); | |
792 | ||
793 | // Saturation is linearly spaced between pastel and pure. | |
794 | for (int sat = satStep; sat <= 100; sat += satStep) { | |
795 | ||
796 | ArrayList<ColorIdx> lumList = new ArrayList<ColorIdx>(); | |
797 | satList.add(lumList); | |
798 | ||
799 | // Luminance brackets the pure color, but leaning toward | |
800 | // lighter. | |
801 | for (int lum = lumBegin; lum < 100; lum += lumStep) { | |
802 | /* | |
803 | System.err.printf("<font style = \"color:"); | |
804 | System.err.printf("hsl(%d, %d%%, %d%%)", | |
805 | hue, sat, lum); | |
806 | System.err.printf(";\">=</font>\n"); | |
807 | */ | |
808 | int rgbColor = hslToRgb(hue, sat, lum); | |
809 | rgbColors.add(rgbColor); | |
810 | ColorIdx colorIdx = new ColorIdx(rgbColor, | |
811 | rgbColors.size() - 1); | |
812 | lumList.add(colorIdx); | |
813 | ||
814 | rawRgbList.add(rgbColor); | |
815 | if (DEBUG) { | |
816 | int red = (rgbColor >>> 16) & 0xFF; | |
817 | int green = (rgbColor >>> 8) & 0xFF; | |
818 | int blue = rgbColor & 0xFF; | |
819 | int [] backToHsl = new int[3]; | |
820 | rgbToHsl(red, green, blue, backToHsl); | |
821 | System.err.printf("%d [%d] %d [%d] %d [%d]\n", | |
822 | hue, backToHsl[0], sat, backToHsl[1], | |
823 | lum, backToHsl[2]); | |
824 | } | |
825 | } | |
826 | } | |
827 | } | |
828 | // System.err.printf("\n</body></html>\n"); | |
829 | ||
a75902fa | 830 | assert (rgbColors.size() == sixelPaletteSize); |
a69ed767 KL |
831 | |
832 | /* | |
833 | * We need to sort rgbColors, so that toSixel() can know where | |
834 | * BLACK and WHITE are in it. But we also need to be able to | |
835 | * find the sorted values using the old unsorted indexes. So we | |
836 | * will sort it, put all the indexes into a HashMap, and then | |
837 | * build rgbSortedIndex[]. | |
838 | */ | |
839 | Collections.sort(rgbColors); | |
840 | HashMap<Integer, Integer> rgbColorIndices = null; | |
841 | rgbColorIndices = new HashMap<Integer, Integer>(); | |
a75902fa | 842 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
843 | rgbColorIndices.put(rgbColors.get(i), i); |
844 | } | |
a75902fa | 845 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
846 | int rawColor = rawRgbList.get(i); |
847 | rgbSortedIndex[i] = rgbColorIndices.get(rawColor); | |
848 | } | |
849 | if (DEBUG) { | |
a75902fa | 850 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
851 | assert (rawRgbList != null); |
852 | int idx = rgbSortedIndex[i]; | |
853 | int rgbColor = rgbColors.get(idx); | |
a75902fa | 854 | if ((idx != 0) && (idx != sixelPaletteSize - 1)) { |
a69ed767 KL |
855 | /* |
856 | System.err.printf("%d %06x --> %d %06x\n", | |
857 | i, rawRgbList.get(i), idx, rgbColors.get(idx)); | |
858 | */ | |
859 | assert (rgbColor == rawRgbList.get(i)); | |
860 | } | |
861 | } | |
862 | } | |
863 | ||
864 | // Set the dimmest color as true black, and the brightest as true | |
865 | // white. | |
866 | rgbColors.set(0, 0); | |
a75902fa | 867 | rgbColors.set(sixelPaletteSize - 1, 0xFFFFFF); |
a69ed767 KL |
868 | |
869 | /* | |
870 | System.err.printf("<html><body>\n"); | |
871 | for (Integer rgb: rgbColors) { | |
872 | System.err.printf("<font style = \"color:"); | |
873 | System.err.printf("#%06x", rgb); | |
874 | System.err.printf(";\">=</font>\n"); | |
875 | } | |
876 | System.err.printf("\n</body></html>\n"); | |
877 | */ | |
878 | ||
879 | } | |
880 | ||
881 | /** | |
882 | * Emit the sixel palette. | |
883 | * | |
884 | * @param sb the StringBuilder to append to | |
885 | * @param used array of booleans set to true for each color actually | |
886 | * used in this cell, or null to emit the entire palette | |
887 | * @return the string to emit to an ANSI / ECMA-style terminal | |
888 | */ | |
889 | public String emitPalette(final StringBuilder sb, | |
890 | final boolean [] used) { | |
891 | ||
a75902fa | 892 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
893 | if (((used != null) && (used[i] == true)) || (used == null)) { |
894 | int rgbColor = rgbColors.get(i); | |
895 | sb.append(String.format("#%d;2;%d;%d;%d", i, | |
896 | ((rgbColor >>> 16) & 0xFF) * 100 / 255, | |
897 | ((rgbColor >>> 8) & 0xFF) * 100 / 255, | |
898 | ( rgbColor & 0xFF) * 100 / 255)); | |
899 | } | |
900 | } | |
901 | return sb.toString(); | |
902 | } | |
903 | } | |
904 | ||
905 | /** | |
9544763d KL |
906 | * ImageCache is a least-recently-used cache that hangs on to the |
907 | * post-rendered sixel or iTerm2 string for a particular set of cells. | |
a69ed767 | 908 | */ |
9544763d | 909 | private class ImageCache { |
a69ed767 KL |
910 | |
911 | /** | |
912 | * Maximum size of the cache. | |
913 | */ | |
914 | private int maxSize = 100; | |
915 | ||
916 | /** | |
917 | * The entries stored in the cache. | |
918 | */ | |
919 | private HashMap<String, CacheEntry> cache = null; | |
920 | ||
921 | /** | |
922 | * CacheEntry is one entry in the cache. | |
923 | */ | |
924 | private class CacheEntry { | |
925 | /** | |
926 | * The cache key. | |
927 | */ | |
928 | public String key; | |
929 | ||
930 | /** | |
931 | * The cache data. | |
932 | */ | |
933 | public String data; | |
934 | ||
935 | /** | |
936 | * The last time this entry was used. | |
937 | */ | |
938 | public long millis = 0; | |
939 | ||
940 | /** | |
941 | * Public constructor. | |
942 | * | |
943 | * @param key the cache entry key | |
944 | * @param data the cache entry data | |
945 | */ | |
946 | public CacheEntry(final String key, final String data) { | |
947 | this.key = key; | |
948 | this.data = data; | |
949 | this.millis = System.currentTimeMillis(); | |
950 | } | |
951 | } | |
952 | ||
953 | /** | |
954 | * Public constructor. | |
955 | * | |
956 | * @param maxSize the maximum size of the cache | |
957 | */ | |
9544763d | 958 | public ImageCache(final int maxSize) { |
a69ed767 KL |
959 | this.maxSize = maxSize; |
960 | cache = new HashMap<String, CacheEntry>(); | |
961 | } | |
962 | ||
963 | /** | |
964 | * Make a unique key for a list of cells. | |
965 | * | |
966 | * @param cells the cells | |
967 | * @return the key | |
968 | */ | |
969 | private String makeKey(final ArrayList<Cell> cells) { | |
970 | StringBuilder sb = new StringBuilder(); | |
971 | for (Cell cell: cells) { | |
972 | sb.append(cell.hashCode()); | |
973 | } | |
974 | return sb.toString(); | |
975 | } | |
976 | ||
977 | /** | |
978 | * Get an entry from the cache. | |
979 | * | |
980 | * @param cells the list of cells that are the cache key | |
981 | * @return the sixel string representing these cells, or null if this | |
982 | * list of cells is not in the cache | |
983 | */ | |
984 | public String get(final ArrayList<Cell> cells) { | |
985 | CacheEntry entry = cache.get(makeKey(cells)); | |
986 | if (entry == null) { | |
987 | return null; | |
988 | } | |
989 | entry.millis = System.currentTimeMillis(); | |
990 | return entry.data; | |
991 | } | |
992 | ||
993 | /** | |
994 | * Put an entry into the cache. | |
995 | * | |
996 | * @param cells the list of cells that are the cache key | |
997 | * @param data the sixel string representing these cells | |
998 | */ | |
999 | public void put(final ArrayList<Cell> cells, final String data) { | |
1000 | String key = makeKey(cells); | |
1001 | ||
1002 | // System.err.println("put() " + key + " size " + cache.size()); | |
1003 | ||
1004 | assert (!cache.containsKey(key)); | |
1005 | ||
1006 | assert (cache.size() <= maxSize); | |
1007 | if (cache.size() == maxSize) { | |
1008 | // Cache is at limit, evict oldest entry. | |
1009 | long oldestTime = Long.MAX_VALUE; | |
1010 | String keyToRemove = null; | |
1011 | for (CacheEntry entry: cache.values()) { | |
1012 | if ((entry.millis < oldestTime) || (keyToRemove == null)) { | |
1013 | keyToRemove = entry.key; | |
1014 | oldestTime = entry.millis; | |
1015 | } | |
1016 | } | |
1017 | /* | |
1018 | System.err.println("put() remove key = " + keyToRemove + | |
1019 | " size " + cache.size()); | |
1020 | */ | |
1021 | assert (keyToRemove != null); | |
1022 | cache.remove(keyToRemove); | |
1023 | /* | |
1024 | System.err.println("put() removed, size " + cache.size()); | |
1025 | */ | |
1026 | } | |
1027 | assert (cache.size() <= maxSize); | |
1028 | CacheEntry entry = new CacheEntry(key, data); | |
1029 | assert (key.equals(entry.key)); | |
1030 | cache.put(key, entry); | |
1031 | /* | |
1032 | System.err.println("put() added key " + key + " " + | |
1033 | " size " + cache.size()); | |
1034 | */ | |
1035 | } | |
1036 | ||
1037 | } | |
1038 | ||
d36057df KL |
1039 | // ------------------------------------------------------------------------ |
1040 | // Constructors ----------------------------------------------------------- | |
1041 | // ------------------------------------------------------------------------ | |
b1589621 KL |
1042 | |
1043 | /** | |
9f613a0c KL |
1044 | * Constructor sets up state for getEvent(). If either windowWidth or |
1045 | * windowHeight are less than 1, the terminal is not resized. | |
eb29bbb5 KL |
1046 | * |
1047 | * @param listener the object this backend needs to wake up when new | |
1048 | * input comes in | |
1049 | * @param input an InputStream connected to the remote user, or null for | |
1050 | * System.in. If System.in is used, then on non-Windows systems it will | |
d91ac0f5 KL |
1051 | * be put in raw mode; closeTerminal() will (blindly!) put System.in in |
1052 | * cooked mode. input is always converted to a Reader with UTF-8 | |
1053 | * encoding. | |
eb29bbb5 KL |
1054 | * @param output an OutputStream connected to the remote user, or null |
1055 | * for System.out. output is always converted to a Writer with UTF-8 | |
1056 | * encoding. | |
1057 | * @param windowWidth the number of text columns to start with | |
1058 | * @param windowHeight the number of text rows to start with | |
1059 | * @throws UnsupportedEncodingException if an exception is thrown when | |
1060 | * creating the InputStreamReader | |
1061 | */ | |
1062 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1063 | final OutputStream output, final int windowWidth, | |
1064 | final int windowHeight) throws UnsupportedEncodingException { | |
1065 | ||
1066 | this(listener, input, output); | |
1067 | ||
1068 | // Send dtterm/xterm sequences, which will probably not work because | |
1069 | // allowWindowOps is defaulted to false. | |
9f613a0c KL |
1070 | if ((windowWidth > 0) && (windowHeight > 0)) { |
1071 | String resizeString = String.format("\033[8;%d;%dt", windowHeight, | |
1072 | windowWidth); | |
1073 | this.output.write(resizeString); | |
1074 | this.output.flush(); | |
1075 | } | |
eb29bbb5 KL |
1076 | } |
1077 | ||
1078 | /** | |
1079 | * Constructor sets up state for getEvent(). | |
b1589621 | 1080 | * |
92554d64 KL |
1081 | * @param listener the object this backend needs to wake up when new |
1082 | * input comes in | |
b1589621 KL |
1083 | * @param input an InputStream connected to the remote user, or null for |
1084 | * System.in. If System.in is used, then on non-Windows systems it will | |
d91ac0f5 KL |
1085 | * be put in raw mode; closeTerminal() will (blindly!) put System.in in |
1086 | * cooked mode. input is always converted to a Reader with UTF-8 | |
1087 | * encoding. | |
b1589621 KL |
1088 | * @param output an OutputStream connected to the remote user, or null |
1089 | * for System.out. output is always converted to a Writer with UTF-8 | |
1090 | * encoding. | |
7b5261bc KL |
1091 | * @throws UnsupportedEncodingException if an exception is thrown when |
1092 | * creating the InputStreamReader | |
b1589621 | 1093 | */ |
92554d64 | 1094 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
1095 | final OutputStream output) throws UnsupportedEncodingException { |
1096 | ||
42873e30 | 1097 | resetParser(); |
7b5261bc KL |
1098 | mouse1 = false; |
1099 | mouse2 = false; | |
1100 | mouse3 = false; | |
1101 | stopReaderThread = false; | |
92554d64 | 1102 | this.listener = listener; |
7b5261bc KL |
1103 | |
1104 | if (input == null) { | |
1105 | // inputStream = System.in; | |
1106 | inputStream = new FileInputStream(FileDescriptor.in); | |
1107 | sttyRaw(); | |
1108 | setRawMode = true; | |
1109 | } else { | |
1110 | inputStream = input; | |
1111 | } | |
1112 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
1113 | ||
7b5261bc | 1114 | if (input instanceof SessionInfo) { |
ea91242c KL |
1115 | // This is a TelnetInputStream that exposes window size and |
1116 | // environment variables from the telnet layer. | |
7b5261bc KL |
1117 | sessionInfo = (SessionInfo) input; |
1118 | } | |
1119 | if (sessionInfo == null) { | |
1120 | if (input == null) { | |
1121 | // Reading right off the tty | |
1122 | sessionInfo = new TTYSessionInfo(); | |
1123 | } else { | |
1124 | sessionInfo = new TSessionInfo(); | |
1125 | } | |
1126 | } | |
1127 | ||
1128 | if (output == null) { | |
1129 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
1130 | "UTF-8")); | |
1131 | } else { | |
1132 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
1133 | "UTF-8")); | |
1134 | } | |
1135 | ||
a69ed767 KL |
1136 | // Request xterm report window dimensions in pixels |
1137 | this.output.printf("%s", xtermReportWindowPixelDimensions()); | |
1138 | ||
7b5261bc KL |
1139 | // Enable mouse reporting and metaSendsEscape |
1140 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
55b4f29b | 1141 | this.output.flush(); |
7b5261bc | 1142 | |
3e074355 KL |
1143 | // Query the screen size |
1144 | sessionInfo.queryWindowSize(); | |
1145 | setDimensions(sessionInfo.getWindowWidth(), | |
1146 | sessionInfo.getWindowHeight()); | |
1147 | ||
7b5261bc KL |
1148 | // Hang onto the window size |
1149 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1150 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1151 | ||
e23ea538 | 1152 | reloadOptions(); |
a69ed767 | 1153 | |
7b5261bc | 1154 | // Spin up the input reader |
63bb9478 | 1155 | eventQueue = new ArrayList<TInputEvent>(); |
7b5261bc KL |
1156 | readerThread = new Thread(this); |
1157 | readerThread.start(); | |
42873e30 | 1158 | |
42873e30 KL |
1159 | // Clear the screen |
1160 | this.output.write(clearAll()); | |
1161 | this.output.flush(); | |
b1589621 KL |
1162 | } |
1163 | ||
6985c572 KL |
1164 | /** |
1165 | * Constructor sets up state for getEvent(). | |
1166 | * | |
1167 | * @param listener the object this backend needs to wake up when new | |
1168 | * input comes in | |
1169 | * @param input the InputStream underlying 'reader'. Its available() | |
1170 | * method is used to determine if reader.read() will block or not. | |
1171 | * @param reader a Reader connected to the remote user. | |
1172 | * @param writer a PrintWriter connected to the remote user. | |
1173 | * @param setRawMode if true, set System.in into raw mode with stty. | |
1174 | * This should in general not be used. It is here solely for Demo3, | |
1175 | * which uses System.in. | |
1176 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1177 | */ | |
1178 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1179 | final Reader reader, final PrintWriter writer, | |
1180 | final boolean setRawMode) { | |
1181 | ||
1182 | if (input == null) { | |
1183 | throw new IllegalArgumentException("InputStream must be specified"); | |
1184 | } | |
1185 | if (reader == null) { | |
1186 | throw new IllegalArgumentException("Reader must be specified"); | |
1187 | } | |
1188 | if (writer == null) { | |
1189 | throw new IllegalArgumentException("Writer must be specified"); | |
1190 | } | |
42873e30 | 1191 | resetParser(); |
6985c572 KL |
1192 | mouse1 = false; |
1193 | mouse2 = false; | |
1194 | mouse3 = false; | |
1195 | stopReaderThread = false; | |
1196 | this.listener = listener; | |
1197 | ||
1198 | inputStream = input; | |
1199 | this.input = reader; | |
1200 | ||
1201 | if (setRawMode == true) { | |
1202 | sttyRaw(); | |
1203 | } | |
1204 | this.setRawMode = setRawMode; | |
1205 | ||
1206 | if (input instanceof SessionInfo) { | |
1207 | // This is a TelnetInputStream that exposes window size and | |
1208 | // environment variables from the telnet layer. | |
1209 | sessionInfo = (SessionInfo) input; | |
1210 | } | |
1211 | if (sessionInfo == null) { | |
31b7033c KL |
1212 | if (setRawMode == true) { |
1213 | // Reading right off the tty | |
1214 | sessionInfo = new TTYSessionInfo(); | |
1215 | } else { | |
1216 | sessionInfo = new TSessionInfo(); | |
1217 | } | |
6985c572 KL |
1218 | } |
1219 | ||
1220 | this.output = writer; | |
1221 | ||
a69ed767 KL |
1222 | // Request xterm report window dimensions in pixels |
1223 | this.output.printf("%s", xtermReportWindowPixelDimensions()); | |
1224 | ||
6985c572 KL |
1225 | // Enable mouse reporting and metaSendsEscape |
1226 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
1227 | this.output.flush(); | |
1228 | ||
3e074355 KL |
1229 | // Query the screen size |
1230 | sessionInfo.queryWindowSize(); | |
1231 | setDimensions(sessionInfo.getWindowWidth(), | |
1232 | sessionInfo.getWindowHeight()); | |
1233 | ||
6985c572 KL |
1234 | // Hang onto the window size |
1235 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1236 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1237 | ||
e23ea538 | 1238 | reloadOptions(); |
a69ed767 | 1239 | |
6985c572 | 1240 | // Spin up the input reader |
63bb9478 | 1241 | eventQueue = new ArrayList<TInputEvent>(); |
6985c572 KL |
1242 | readerThread = new Thread(this); |
1243 | readerThread.start(); | |
42873e30 | 1244 | |
42873e30 KL |
1245 | // Clear the screen |
1246 | this.output.write(clearAll()); | |
1247 | this.output.flush(); | |
6985c572 KL |
1248 | } |
1249 | ||
1250 | /** | |
1251 | * Constructor sets up state for getEvent(). | |
1252 | * | |
1253 | * @param listener the object this backend needs to wake up when new | |
1254 | * input comes in | |
1255 | * @param input the InputStream underlying 'reader'. Its available() | |
1256 | * method is used to determine if reader.read() will block or not. | |
1257 | * @param reader a Reader connected to the remote user. | |
1258 | * @param writer a PrintWriter connected to the remote user. | |
1259 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1260 | */ | |
1261 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1262 | final Reader reader, final PrintWriter writer) { | |
1263 | ||
1264 | this(listener, input, reader, writer, false); | |
1265 | } | |
1266 | ||
d36057df KL |
1267 | // ------------------------------------------------------------------------ |
1268 | // LogicalScreen ---------------------------------------------------------- | |
1269 | // ------------------------------------------------------------------------ | |
1270 | ||
1271 | /** | |
1272 | * Set the window title. | |
1273 | * | |
1274 | * @param title the new title | |
1275 | */ | |
1276 | @Override | |
1277 | public void setTitle(final String title) { | |
1278 | output.write(getSetTitleString(title)); | |
1279 | flush(); | |
1280 | } | |
1281 | ||
1282 | /** | |
1283 | * Push the logical screen to the physical device. | |
1284 | */ | |
1285 | @Override | |
1286 | public void flushPhysical() { | |
a69ed767 | 1287 | StringBuilder sb = new StringBuilder(); |
d36057df KL |
1288 | if ((cursorVisible) |
1289 | && (cursorY >= 0) | |
1290 | && (cursorX >= 0) | |
1291 | && (cursorY <= height - 1) | |
1292 | && (cursorX <= width - 1) | |
1293 | ) { | |
a69ed767 KL |
1294 | flushString(sb); |
1295 | sb.append(cursor(true)); | |
1296 | sb.append(gotoXY(cursorX, cursorY)); | |
d36057df | 1297 | } else { |
a69ed767 KL |
1298 | sb.append(cursor(false)); |
1299 | flushString(sb); | |
d36057df | 1300 | } |
a69ed767 | 1301 | output.write(sb.toString()); |
d36057df KL |
1302 | flush(); |
1303 | } | |
1304 | ||
9696a8f6 KL |
1305 | /** |
1306 | * Resize the physical screen to match the logical screen dimensions. | |
1307 | */ | |
1308 | @Override | |
1309 | public void resizeToScreen() { | |
1310 | // Send dtterm/xterm sequences, which will probably not work because | |
1311 | // allowWindowOps is defaulted to false. | |
1312 | String resizeString = String.format("\033[8;%d;%dt", getHeight(), | |
1313 | getWidth()); | |
1314 | this.output.write(resizeString); | |
1315 | this.output.flush(); | |
1316 | } | |
1317 | ||
d36057df KL |
1318 | // ------------------------------------------------------------------------ |
1319 | // TerminalReader --------------------------------------------------------- | |
1320 | // ------------------------------------------------------------------------ | |
1321 | ||
1322 | /** | |
1323 | * Check if there are events in the queue. | |
1324 | * | |
1325 | * @return if true, getEvents() has something to return to the backend | |
1326 | */ | |
1327 | public boolean hasEvents() { | |
1328 | synchronized (eventQueue) { | |
1329 | return (eventQueue.size() > 0); | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | /** | |
1334 | * Return any events in the IO queue. | |
1335 | * | |
1336 | * @param queue list to append new events to | |
1337 | */ | |
1338 | public void getEvents(final List<TInputEvent> queue) { | |
1339 | synchronized (eventQueue) { | |
1340 | if (eventQueue.size() > 0) { | |
1341 | synchronized (queue) { | |
1342 | queue.addAll(eventQueue); | |
1343 | } | |
1344 | eventQueue.clear(); | |
1345 | } | |
1346 | } | |
1347 | } | |
1348 | ||
b1589621 | 1349 | /** |
7b5261bc | 1350 | * Restore terminal to normal state. |
b1589621 | 1351 | */ |
42873e30 | 1352 | public void closeTerminal() { |
4328bb42 | 1353 | |
d91ac0f5 | 1354 | // System.err.println("=== closeTerminal() ==="); System.err.flush(); |
7b5261bc KL |
1355 | |
1356 | // Tell the reader thread to stop looking at input | |
1357 | stopReaderThread = true; | |
1358 | try { | |
1359 | readerThread.join(); | |
1360 | } catch (InterruptedException e) { | |
a69ed767 KL |
1361 | if (debugToStderr) { |
1362 | e.printStackTrace(); | |
1363 | } | |
7b5261bc KL |
1364 | } |
1365 | ||
0525b2ed KL |
1366 | // Disable mouse reporting and show cursor. Defensive null check |
1367 | // here in case closeTerminal() is called twice. | |
1368 | if (output != null) { | |
842be156 | 1369 | output.printf("%s%s%s", mouse(false), cursor(true), defaultColor()); |
0525b2ed KL |
1370 | output.flush(); |
1371 | } | |
7b5261bc KL |
1372 | |
1373 | if (setRawMode) { | |
1374 | sttyCooked(); | |
1375 | setRawMode = false; | |
1376 | // We don't close System.in/out | |
1377 | } else { | |
1378 | // Shut down the streams, this should wake up the reader thread | |
1379 | // and make it exit. | |
a69ed767 KL |
1380 | if (input != null) { |
1381 | try { | |
7b5261bc | 1382 | input.close(); |
a69ed767 KL |
1383 | } catch (IOException e) { |
1384 | // SQUASH | |
7b5261bc | 1385 | } |
a69ed767 KL |
1386 | input = null; |
1387 | } | |
1388 | if (output != null) { | |
1389 | output.close(); | |
1390 | output = null; | |
7b5261bc KL |
1391 | } |
1392 | } | |
b1589621 KL |
1393 | } |
1394 | ||
d36057df KL |
1395 | /** |
1396 | * Set listener to a different Object. | |
1397 | * | |
1398 | * @param listener the new listening object that run() wakes up on new | |
1399 | * input | |
1400 | */ | |
1401 | public void setListener(final Object listener) { | |
1402 | this.listener = listener; | |
1403 | } | |
1404 | ||
e23ea538 KL |
1405 | /** |
1406 | * Reload options from System properties. | |
1407 | */ | |
1408 | public void reloadOptions() { | |
1409 | // Permit RGB colors only if externally requested. | |
1410 | if (System.getProperty("jexer.ECMA48.rgbColor", | |
1411 | "false").equals("true") | |
1412 | ) { | |
1413 | doRgbColor = true; | |
1414 | } else { | |
1415 | doRgbColor = false; | |
1416 | } | |
1417 | ||
9544763d | 1418 | // Default to using images for full-width characters. |
772b8255 KL |
1419 | if (System.getProperty("jexer.ECMA48.wideCharImages", |
1420 | "true").equals("true")) { | |
1421 | wideCharImages = true; | |
1422 | } else { | |
1423 | wideCharImages = false; | |
1424 | } | |
1425 | ||
e23ea538 KL |
1426 | // Pull the system properties for sixel output. |
1427 | if (System.getProperty("jexer.ECMA48.sixel", "true").equals("true")) { | |
1428 | sixel = true; | |
1429 | } else { | |
1430 | sixel = false; | |
1431 | } | |
a75902fa KL |
1432 | |
1433 | // Palette size | |
1434 | int paletteSize = 1024; | |
1435 | try { | |
1436 | paletteSize = Integer.parseInt(System.getProperty( | |
1437 | "jexer.ECMA48.sixelPaletteSize", "1024")); | |
1438 | switch (paletteSize) { | |
1439 | case 2: | |
1440 | case 256: | |
1441 | case 512: | |
1442 | case 1024: | |
1443 | case 2048: | |
1444 | sixelPaletteSize = paletteSize; | |
1445 | break; | |
1446 | default: | |
1447 | // Ignore value | |
1448 | break; | |
1449 | } | |
1450 | } catch (NumberFormatException e) { | |
1451 | // SQUASH | |
1452 | } | |
d91ac0f5 | 1453 | |
9544763d KL |
1454 | // Default to using images for full-width characters. |
1455 | if (System.getProperty("jexer.ECMA48.iTerm2Images", | |
1456 | "false").equals("true")) { | |
1457 | iterm2Images = true; | |
1458 | } else { | |
1459 | iterm2Images = false; | |
1460 | } | |
1461 | ||
d91ac0f5 KL |
1462 | // Set custom colors |
1463 | setCustomSystemColors(); | |
e23ea538 KL |
1464 | } |
1465 | ||
d36057df KL |
1466 | // ------------------------------------------------------------------------ |
1467 | // Runnable --------------------------------------------------------------- | |
1468 | // ------------------------------------------------------------------------ | |
1469 | ||
1470 | /** | |
1471 | * Read function runs on a separate thread. | |
1472 | */ | |
1473 | public void run() { | |
1474 | boolean done = false; | |
1475 | // available() will often return > 1, so we need to read in chunks to | |
1476 | // stay caught up. | |
1477 | char [] readBuffer = new char[128]; | |
63bb9478 | 1478 | List<TInputEvent> events = new ArrayList<TInputEvent>(); |
d36057df KL |
1479 | |
1480 | while (!done && !stopReaderThread) { | |
1481 | try { | |
1482 | // We assume that if inputStream has bytes available, then | |
1483 | // input won't block on read(). | |
1484 | int n = inputStream.available(); | |
1485 | ||
1486 | /* | |
1487 | System.err.printf("inputStream.available(): %d\n", n); | |
1488 | System.err.flush(); | |
1489 | */ | |
1490 | ||
1491 | if (n > 0) { | |
1492 | if (readBuffer.length < n) { | |
1493 | // The buffer wasn't big enough, make it huger | |
1494 | readBuffer = new char[readBuffer.length * 2]; | |
1495 | } | |
1496 | ||
1497 | // System.err.printf("BEFORE read()\n"); System.err.flush(); | |
1498 | ||
1499 | int rc = input.read(readBuffer, 0, readBuffer.length); | |
1500 | ||
1501 | /* | |
1502 | System.err.printf("AFTER read() %d\n", rc); | |
1503 | System.err.flush(); | |
1504 | */ | |
1505 | ||
1506 | if (rc == -1) { | |
1507 | // This is EOF | |
1508 | done = true; | |
1509 | } else { | |
1510 | for (int i = 0; i < rc; i++) { | |
1511 | int ch = readBuffer[i]; | |
1512 | processChar(events, (char)ch); | |
1513 | } | |
1514 | getIdleEvents(events); | |
1515 | if (events.size() > 0) { | |
1516 | // Add to the queue for the backend thread to | |
1517 | // be able to obtain. | |
1518 | synchronized (eventQueue) { | |
1519 | eventQueue.addAll(events); | |
1520 | } | |
1521 | if (listener != null) { | |
1522 | synchronized (listener) { | |
1523 | listener.notifyAll(); | |
1524 | } | |
1525 | } | |
1526 | events.clear(); | |
1527 | } | |
1528 | } | |
1529 | } else { | |
1530 | getIdleEvents(events); | |
1531 | if (events.size() > 0) { | |
1532 | synchronized (eventQueue) { | |
1533 | eventQueue.addAll(events); | |
1534 | } | |
1535 | if (listener != null) { | |
1536 | synchronized (listener) { | |
1537 | listener.notifyAll(); | |
1538 | } | |
1539 | } | |
1540 | events.clear(); | |
1541 | } | |
1542 | ||
eb0d6c82 KL |
1543 | if (output.checkError()) { |
1544 | // This is EOF. | |
1545 | done = true; | |
1546 | } | |
1547 | ||
d36057df KL |
1548 | // Wait 20 millis for more data |
1549 | Thread.sleep(20); | |
1550 | } | |
1551 | // System.err.println("end while loop"); System.err.flush(); | |
1552 | } catch (InterruptedException e) { | |
1553 | // SQUASH | |
1554 | } catch (IOException e) { | |
1555 | e.printStackTrace(); | |
1556 | done = true; | |
1557 | } | |
1558 | } // while ((done == false) && (stopReaderThread == false)) | |
eb0d6c82 | 1559 | |
abb84744 KL |
1560 | // Pass an event up to TApplication to tell it this Backend is done. |
1561 | synchronized (eventQueue) { | |
1562 | eventQueue.add(new TCommandEvent(cmBackendDisconnect)); | |
1563 | } | |
1564 | if (listener != null) { | |
1565 | synchronized (listener) { | |
1566 | listener.notifyAll(); | |
1567 | } | |
1568 | } | |
eb0d6c82 | 1569 | |
d4bcb88c | 1570 | // System.err.println("*** run() exiting..."); System.err.flush(); |
d36057df KL |
1571 | } |
1572 | ||
1573 | // ------------------------------------------------------------------------ | |
1574 | // ECMA48Terminal --------------------------------------------------------- | |
1575 | // ------------------------------------------------------------------------ | |
1576 | ||
a69ed767 KL |
1577 | /** |
1578 | * Get the width of a character cell in pixels. | |
1579 | * | |
1580 | * @return the width in pixels of a character cell | |
1581 | */ | |
1582 | public int getTextWidth() { | |
1583 | return (widthPixels / sessionInfo.getWindowWidth()); | |
1584 | } | |
1585 | ||
1586 | /** | |
1587 | * Get the height of a character cell in pixels. | |
1588 | * | |
1589 | * @return the height in pixels of a character cell | |
1590 | */ | |
1591 | public int getTextHeight() { | |
1592 | return (heightPixels / sessionInfo.getWindowHeight()); | |
1593 | } | |
1594 | ||
d36057df KL |
1595 | /** |
1596 | * Getter for sessionInfo. | |
1597 | * | |
1598 | * @return the SessionInfo | |
1599 | */ | |
1600 | public SessionInfo getSessionInfo() { | |
1601 | return sessionInfo; | |
1602 | } | |
1603 | ||
1604 | /** | |
1605 | * Get the output writer. | |
1606 | * | |
1607 | * @return the Writer | |
1608 | */ | |
1609 | public PrintWriter getOutput() { | |
1610 | return output; | |
1611 | } | |
1612 | ||
1613 | /** | |
1614 | * Call 'stty' to set cooked mode. | |
1615 | * | |
1616 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
1617 | */ | |
1618 | private void sttyCooked() { | |
1619 | doStty(false); | |
1620 | } | |
1621 | ||
1622 | /** | |
1623 | * Call 'stty' to set raw mode. | |
1624 | * | |
1625 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
1626 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
1627 | * -parenb cs8 min 1 < /dev/tty' | |
1628 | */ | |
1629 | private void sttyRaw() { | |
1630 | doStty(true); | |
1631 | } | |
1632 | ||
1633 | /** | |
1634 | * Call 'stty' to set raw or cooked mode. | |
1635 | * | |
1636 | * @param mode if true, set raw mode, otherwise set cooked mode | |
1637 | */ | |
1638 | private void doStty(final boolean mode) { | |
1639 | String [] cmdRaw = { | |
1640 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
1641 | }; | |
1642 | String [] cmdCooked = { | |
1643 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
1644 | }; | |
1645 | try { | |
1646 | Process process; | |
1647 | if (mode) { | |
1648 | process = Runtime.getRuntime().exec(cmdRaw); | |
1649 | } else { | |
1650 | process = Runtime.getRuntime().exec(cmdCooked); | |
1651 | } | |
1652 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
1653 | String line = in.readLine(); | |
1654 | if ((line != null) && (line.length() > 0)) { | |
1655 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
1656 | } | |
1657 | while (true) { | |
1658 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
1659 | line = err.readLine(); | |
1660 | if ((line != null) && (line.length() > 0)) { | |
1661 | System.err.println("Error output from stty: " + line); | |
1662 | } | |
1663 | try { | |
1664 | process.waitFor(); | |
1665 | break; | |
1666 | } catch (InterruptedException e) { | |
a69ed767 KL |
1667 | if (debugToStderr) { |
1668 | e.printStackTrace(); | |
1669 | } | |
d36057df KL |
1670 | } |
1671 | } | |
1672 | int rc = process.exitValue(); | |
1673 | if (rc != 0) { | |
1674 | System.err.println("stty returned error code: " + rc); | |
1675 | } | |
1676 | } catch (IOException e) { | |
1677 | e.printStackTrace(); | |
1678 | } | |
1679 | } | |
1680 | ||
b1589621 | 1681 | /** |
7b5261bc | 1682 | * Flush output. |
b1589621 KL |
1683 | */ |
1684 | public void flush() { | |
7b5261bc | 1685 | output.flush(); |
b1589621 KL |
1686 | } |
1687 | ||
42873e30 KL |
1688 | /** |
1689 | * Perform a somewhat-optimal rendering of a line. | |
1690 | * | |
1691 | * @param y row coordinate. 0 is the top-most row. | |
1692 | * @param sb StringBuilder to write escape sequences to | |
1693 | * @param lastAttr cell attributes from the last call to flushLine | |
1694 | */ | |
1695 | private void flushLine(final int y, final StringBuilder sb, | |
1696 | CellAttributes lastAttr) { | |
1697 | ||
1698 | int lastX = -1; | |
1699 | int textEnd = 0; | |
1700 | for (int x = 0; x < width; x++) { | |
1701 | Cell lCell = logical[x][y]; | |
1702 | if (!lCell.isBlank()) { | |
1703 | textEnd = x; | |
1704 | } | |
1705 | } | |
1706 | // Push textEnd to first column beyond the text area | |
1707 | textEnd++; | |
1708 | ||
1709 | // DEBUG | |
1710 | // reallyCleared = true; | |
1711 | ||
a69ed767 KL |
1712 | boolean hasImage = false; |
1713 | ||
42873e30 KL |
1714 | for (int x = 0; x < width; x++) { |
1715 | Cell lCell = logical[x][y]; | |
1716 | Cell pCell = physical[x][y]; | |
1717 | ||
1718 | if (!lCell.equals(pCell) || reallyCleared) { | |
1719 | ||
1720 | if (debugToStderr) { | |
1721 | System.err.printf("\n--\n"); | |
1722 | System.err.printf(" Y: %d X: %d\n", y, x); | |
1723 | System.err.printf(" lCell: %s\n", lCell); | |
1724 | System.err.printf(" pCell: %s\n", pCell); | |
1725 | System.err.printf(" ==== \n"); | |
1726 | } | |
1727 | ||
1728 | if (lastAttr == null) { | |
1729 | lastAttr = new CellAttributes(); | |
1730 | sb.append(normal()); | |
1731 | } | |
1732 | ||
1733 | // Place the cell | |
1734 | if ((lastX != (x - 1)) || (lastX == -1)) { | |
1735 | // Advancing at least one cell, or the first gotoXY | |
1736 | sb.append(gotoXY(x, y)); | |
1737 | } | |
1738 | ||
1739 | assert (lastAttr != null); | |
1740 | ||
1741 | if ((x == textEnd) && (textEnd < width - 1)) { | |
1742 | assert (lCell.isBlank()); | |
1743 | ||
1744 | for (int i = x; i < width; i++) { | |
1745 | assert (logical[i][y].isBlank()); | |
1746 | // Physical is always updated | |
1747 | physical[i][y].reset(); | |
1748 | } | |
1749 | ||
1750 | // Clear remaining line | |
1751 | sb.append(clearRemainingLine()); | |
1752 | lastAttr.reset(); | |
1753 | return; | |
1754 | } | |
1755 | ||
a69ed767 KL |
1756 | // Image cell: bypass the rest of the loop, it is not |
1757 | // rendered here. | |
772b8255 KL |
1758 | if ((wideCharImages && lCell.isImage()) |
1759 | || (!wideCharImages | |
1760 | && lCell.isImage() | |
1761 | && (lCell.getWidth() == Cell.Width.SINGLE)) | |
1762 | ) { | |
a69ed767 KL |
1763 | hasImage = true; |
1764 | ||
1765 | // Save the last rendered cell | |
1766 | lastX = x; | |
1767 | ||
1768 | // Physical is always updated | |
1769 | physical[x][y].setTo(lCell); | |
1770 | continue; | |
1771 | } | |
1772 | ||
772b8255 KL |
1773 | assert ((wideCharImages && !lCell.isImage()) |
1774 | || (!wideCharImages | |
1775 | && (!lCell.isImage() | |
1776 | || (lCell.isImage() | |
1777 | && (lCell.getWidth() != Cell.Width.SINGLE))))); | |
1778 | ||
1779 | if (!wideCharImages && (lCell.getWidth() == Cell.Width.RIGHT)) { | |
1780 | continue; | |
1781 | } | |
1782 | ||
a69ed767 KL |
1783 | if (hasImage) { |
1784 | hasImage = false; | |
1785 | sb.append(gotoXY(x, y)); | |
1786 | } | |
1787 | ||
42873e30 KL |
1788 | // Now emit only the modified attributes |
1789 | if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1790 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1791 | && (!lCell.isRGB()) |
42873e30 KL |
1792 | && (lCell.isBold() == lastAttr.isBold()) |
1793 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1794 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1795 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1796 | ) { | |
1797 | // Both colors changed, attributes the same | |
1798 | sb.append(color(lCell.isBold(), | |
1799 | lCell.getForeColor(), lCell.getBackColor())); | |
1800 | ||
1801 | if (debugToStderr) { | |
1802 | System.err.printf("1 Change only fore/back colors\n"); | |
1803 | } | |
051e2913 KL |
1804 | |
1805 | } else if (lCell.isRGB() | |
1806 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1807 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1808 | && (lCell.isBold() == lastAttr.isBold()) | |
1809 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1810 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1811 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1812 | ) { | |
1813 | // Both colors changed, attributes the same | |
1814 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
1815 | lCell.getBackColorRGB())); | |
1816 | ||
1817 | if (debugToStderr) { | |
1818 | System.err.printf("1 Change only fore/back colors (RGB)\n"); | |
1819 | } | |
42873e30 KL |
1820 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) |
1821 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1822 | && (!lCell.isRGB()) |
42873e30 KL |
1823 | && (lCell.isBold() != lastAttr.isBold()) |
1824 | && (lCell.isReverse() != lastAttr.isReverse()) | |
1825 | && (lCell.isUnderline() != lastAttr.isUnderline()) | |
1826 | && (lCell.isBlink() != lastAttr.isBlink()) | |
1827 | ) { | |
1828 | // Everything is different | |
1829 | sb.append(color(lCell.getForeColor(), | |
1830 | lCell.getBackColor(), | |
1831 | lCell.isBold(), lCell.isReverse(), | |
1832 | lCell.isBlink(), | |
1833 | lCell.isUnderline())); | |
1834 | ||
1835 | if (debugToStderr) { | |
1836 | System.err.printf("2 Set all attributes\n"); | |
1837 | } | |
1838 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1839 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 | 1840 | && (!lCell.isRGB()) |
42873e30 KL |
1841 | && (lCell.isBold() == lastAttr.isBold()) |
1842 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1843 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1844 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1845 | ) { | |
1846 | ||
1847 | // Attributes same, foreColor different | |
1848 | sb.append(color(lCell.isBold(), | |
1849 | lCell.getForeColor(), true)); | |
1850 | ||
1851 | if (debugToStderr) { | |
1852 | System.err.printf("3 Change foreColor\n"); | |
1853 | } | |
051e2913 KL |
1854 | } else if (lCell.isRGB() |
1855 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1856 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
1857 | && (lCell.getForeColorRGB() >= 0) | |
1858 | && (lCell.getBackColorRGB() >= 0) | |
1859 | && (lCell.isBold() == lastAttr.isBold()) | |
1860 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1861 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1862 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1863 | ) { | |
1864 | // Attributes same, foreColor different | |
1865 | sb.append(colorRGB(lCell.getForeColorRGB(), true)); | |
1866 | ||
1867 | if (debugToStderr) { | |
1868 | System.err.printf("3 Change foreColor (RGB)\n"); | |
1869 | } | |
42873e30 KL |
1870 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1871 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1872 | && (!lCell.isRGB()) |
42873e30 KL |
1873 | && (lCell.isBold() == lastAttr.isBold()) |
1874 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1875 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1876 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1877 | ) { | |
1878 | // Attributes same, backColor different | |
1879 | sb.append(color(lCell.isBold(), | |
1880 | lCell.getBackColor(), false)); | |
1881 | ||
1882 | if (debugToStderr) { | |
1883 | System.err.printf("4 Change backColor\n"); | |
1884 | } | |
051e2913 KL |
1885 | } else if (lCell.isRGB() |
1886 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) | |
1887 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1888 | && (lCell.isBold() == lastAttr.isBold()) | |
1889 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1890 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1891 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1892 | ) { | |
1893 | // Attributes same, foreColor different | |
1894 | sb.append(colorRGB(lCell.getBackColorRGB(), false)); | |
1895 | ||
1896 | if (debugToStderr) { | |
1897 | System.err.printf("4 Change backColor (RGB)\n"); | |
1898 | } | |
42873e30 KL |
1899 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1900 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 KL |
1901 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) |
1902 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
42873e30 KL |
1903 | && (lCell.isBold() == lastAttr.isBold()) |
1904 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1905 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1906 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1907 | ) { | |
1908 | ||
1909 | // All attributes the same, just print the char | |
1910 | // NOP | |
1911 | ||
1912 | if (debugToStderr) { | |
1913 | System.err.printf("5 Only emit character\n"); | |
1914 | } | |
1915 | } else { | |
1916 | // Just reset everything again | |
051e2913 KL |
1917 | if (!lCell.isRGB()) { |
1918 | sb.append(color(lCell.getForeColor(), | |
1919 | lCell.getBackColor(), | |
1920 | lCell.isBold(), | |
1921 | lCell.isReverse(), | |
1922 | lCell.isBlink(), | |
1923 | lCell.isUnderline())); | |
1924 | ||
1925 | if (debugToStderr) { | |
1926 | System.err.printf("6 Change all attributes\n"); | |
1927 | } | |
1928 | } else { | |
1929 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
1930 | lCell.getBackColorRGB(), | |
1931 | lCell.isBold(), | |
1932 | lCell.isReverse(), | |
1933 | lCell.isBlink(), | |
1934 | lCell.isUnderline())); | |
1935 | if (debugToStderr) { | |
1936 | System.err.printf("6 Change all attributes (RGB)\n"); | |
1937 | } | |
42873e30 | 1938 | } |
051e2913 | 1939 | |
42873e30 KL |
1940 | } |
1941 | // Emit the character | |
772b8255 KL |
1942 | if (wideCharImages |
1943 | // Don't emit the right-half of full-width chars. | |
1944 | || (!wideCharImages | |
1945 | && (lCell.getWidth() != Cell.Width.RIGHT)) | |
1946 | ) { | |
1947 | sb.append(Character.toChars(lCell.getChar())); | |
1948 | } | |
42873e30 KL |
1949 | |
1950 | // Save the last rendered cell | |
1951 | lastX = x; | |
1952 | lastAttr.setTo(lCell); | |
1953 | ||
1954 | // Physical is always updated | |
1955 | physical[x][y].setTo(lCell); | |
1956 | ||
1957 | } // if (!lCell.equals(pCell) || (reallyCleared == true)) | |
1958 | ||
1959 | } // for (int x = 0; x < width; x++) | |
1960 | } | |
1961 | ||
1962 | /** | |
1963 | * Render the screen to a string that can be emitted to something that | |
1964 | * knows how to process ECMA-48/ANSI X3.64 escape sequences. | |
1965 | * | |
a69ed767 | 1966 | * @param sb StringBuilder to write escape sequences to |
42873e30 KL |
1967 | * @return escape sequences string that provides the updates to the |
1968 | * physical screen | |
1969 | */ | |
a69ed767 | 1970 | private String flushString(final StringBuilder sb) { |
42873e30 KL |
1971 | CellAttributes attr = null; |
1972 | ||
42873e30 KL |
1973 | if (reallyCleared) { |
1974 | attr = new CellAttributes(); | |
1975 | sb.append(clearAll()); | |
1976 | } | |
1977 | ||
a69ed767 | 1978 | /* |
9544763d | 1979 | * For images support, draw all of the image output first, and then |
a69ed767 KL |
1980 | * draw everything else afterwards. This works OK, but performance |
1981 | * is still a drag on larger pictures. | |
1982 | */ | |
1983 | for (int y = 0; y < height; y++) { | |
1984 | for (int x = 0; x < width; x++) { | |
1985 | // If physical had non-image data that is now image data, the | |
1986 | // entire row must be redrawn. | |
1987 | Cell lCell = logical[x][y]; | |
1988 | Cell pCell = physical[x][y]; | |
1989 | if (lCell.isImage() && !pCell.isImage()) { | |
1990 | unsetImageRow(y); | |
1991 | break; | |
1992 | } | |
1993 | } | |
1994 | } | |
1995 | for (int y = 0; y < height; y++) { | |
1996 | for (int x = 0; x < width; x++) { | |
1997 | Cell lCell = logical[x][y]; | |
1998 | Cell pCell = physical[x][y]; | |
1999 | ||
772b8255 KL |
2000 | if (!lCell.isImage() |
2001 | || (!wideCharImages | |
2002 | && (lCell.getWidth() != Cell.Width.SINGLE)) | |
2003 | ) { | |
a69ed767 KL |
2004 | continue; |
2005 | } | |
2006 | ||
2007 | int left = x; | |
2008 | int right = x; | |
2009 | while ((right < width) | |
2010 | && (logical[right][y].isImage()) | |
2011 | && (!logical[right][y].equals(physical[right][y]) | |
2012 | || reallyCleared) | |
2013 | ) { | |
2014 | right++; | |
2015 | } | |
2016 | ArrayList<Cell> cellsToDraw = new ArrayList<Cell>(); | |
2017 | for (int i = 0; i < (right - x); i++) { | |
2018 | assert (logical[x + i][y].isImage()); | |
2019 | cellsToDraw.add(logical[x + i][y]); | |
2020 | ||
2021 | // Physical is always updated. | |
2022 | physical[x + i][y].setTo(lCell); | |
2023 | } | |
2024 | if (cellsToDraw.size() > 0) { | |
9544763d KL |
2025 | if (iterm2Images) { |
2026 | sb.append(toIterm2Image(x, y, cellsToDraw)); | |
2027 | } else { | |
2028 | sb.append(toSixel(x, y, cellsToDraw)); | |
2029 | } | |
a69ed767 KL |
2030 | } |
2031 | ||
2032 | x = right; | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | // Draw the text part now. | |
42873e30 KL |
2037 | for (int y = 0; y < height; y++) { |
2038 | flushLine(y, sb, attr); | |
2039 | } | |
2040 | ||
42873e30 KL |
2041 | reallyCleared = false; |
2042 | ||
2043 | String result = sb.toString(); | |
2044 | if (debugToStderr) { | |
2045 | System.err.printf("flushString(): %s\n", result); | |
2046 | } | |
2047 | return result; | |
2048 | } | |
2049 | ||
b1589621 | 2050 | /** |
7b5261bc | 2051 | * Reset keyboard/mouse input parser. |
b1589621 | 2052 | */ |
42873e30 | 2053 | private void resetParser() { |
7b5261bc KL |
2054 | state = ParseState.GROUND; |
2055 | params = new ArrayList<String>(); | |
7b5261bc KL |
2056 | params.clear(); |
2057 | params.add(""); | |
b1589621 KL |
2058 | } |
2059 | ||
2060 | /** | |
2061 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 2062 | * etc.). |
b1589621 KL |
2063 | * |
2064 | * @param ch Unicode code point | |
b299e69c | 2065 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 2066 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
2067 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
2068 | * fnKey == ESC) | |
2069 | */ | |
b299e69c | 2070 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
2071 | // System.err.printf("controlChar: %02x\n", ch); |
2072 | ||
2073 | switch (ch) { | |
2074 | case 0x0D: | |
2075 | // Carriage return --> ENTER | |
b299e69c | 2076 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
2077 | case 0x0A: |
2078 | // Linefeed --> ENTER | |
b299e69c | 2079 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
2080 | case 0x1B: |
2081 | // ESC | |
b299e69c | 2082 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
2083 | case '\t': |
2084 | // TAB | |
b299e69c | 2085 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
2086 | default: |
2087 | // Make all other control characters come back as the alphabetic | |
2088 | // character with the ctrl field set. So SOH would be 'A' + | |
2089 | // ctrl. | |
b299e69c KL |
2090 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
2091 | alt, true, false); | |
7b5261bc | 2092 | } |
b1589621 KL |
2093 | } |
2094 | ||
2095 | /** | |
2096 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
2097 | * | |
2098 | * @return one KEYPRESS event representing a special key | |
2099 | */ | |
2100 | private TInputEvent csiFnKey() { | |
7b5261bc | 2101 | int key = 0; |
7b5261bc KL |
2102 | if (params.size() > 0) { |
2103 | key = Integer.parseInt(params.get(0)); | |
2104 | } | |
b299e69c KL |
2105 | boolean alt = false; |
2106 | boolean ctrl = false; | |
2107 | boolean shift = false; | |
32437017 KL |
2108 | if (params.size() > 1) { |
2109 | shift = csiIsShift(params.get(1)); | |
2110 | alt = csiIsAlt(params.get(1)); | |
2111 | ctrl = csiIsCtrl(params.get(1)); | |
b299e69c | 2112 | } |
d4a29741 | 2113 | |
b299e69c KL |
2114 | switch (key) { |
2115 | case 1: | |
2116 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
2117 | case 2: | |
2118 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
2119 | case 3: | |
2120 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
2121 | case 4: | |
2122 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
2123 | case 5: | |
2124 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
2125 | case 6: | |
2126 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
2127 | case 15: | |
2128 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
2129 | case 17: | |
2130 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
2131 | case 18: | |
2132 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
2133 | case 19: | |
2134 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
2135 | case 20: | |
2136 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
2137 | case 21: | |
2138 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
2139 | case 23: | |
2140 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
2141 | case 24: | |
2142 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
2143 | default: |
2144 | // Unknown | |
2145 | return null; | |
2146 | } | |
b1589621 KL |
2147 | } |
2148 | ||
2149 | /** | |
2150 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
2151 | * coordinates. See | |
2152 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2153 | * | |
2154 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2155 | */ | |
2156 | private TInputEvent parseMouse() { | |
7b5261bc KL |
2157 | int buttons = params.get(0).charAt(0) - 32; |
2158 | int x = params.get(0).charAt(1) - 32 - 1; | |
2159 | int y = params.get(0).charAt(2) - 32 - 1; | |
2160 | ||
2161 | // Clamp X and Y to the physical screen coordinates. | |
2162 | if (x >= windowResize.getWidth()) { | |
2163 | x = windowResize.getWidth() - 1; | |
2164 | } | |
2165 | if (y >= windowResize.getHeight()) { | |
2166 | y = windowResize.getHeight() - 1; | |
2167 | } | |
2168 | ||
d4a29741 KL |
2169 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
2170 | boolean eventMouse1 = false; | |
2171 | boolean eventMouse2 = false; | |
2172 | boolean eventMouse3 = false; | |
2173 | boolean eventMouseWheelUp = false; | |
2174 | boolean eventMouseWheelDown = false; | |
7b5261bc KL |
2175 | |
2176 | // System.err.printf("buttons: %04x\r\n", buttons); | |
2177 | ||
2178 | switch (buttons) { | |
2179 | case 0: | |
d4a29741 | 2180 | eventMouse1 = true; |
7b5261bc KL |
2181 | mouse1 = true; |
2182 | break; | |
2183 | case 1: | |
d4a29741 | 2184 | eventMouse2 = true; |
7b5261bc KL |
2185 | mouse2 = true; |
2186 | break; | |
2187 | case 2: | |
d4a29741 | 2188 | eventMouse3 = true; |
7b5261bc KL |
2189 | mouse3 = true; |
2190 | break; | |
2191 | case 3: | |
2192 | // Release or Move | |
2193 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 2194 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 2195 | } else { |
d4a29741 | 2196 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
2197 | } |
2198 | if (mouse1) { | |
2199 | mouse1 = false; | |
d4a29741 | 2200 | eventMouse1 = true; |
7b5261bc KL |
2201 | } |
2202 | if (mouse2) { | |
2203 | mouse2 = false; | |
d4a29741 | 2204 | eventMouse2 = true; |
7b5261bc KL |
2205 | } |
2206 | if (mouse3) { | |
2207 | mouse3 = false; | |
d4a29741 | 2208 | eventMouse3 = true; |
7b5261bc KL |
2209 | } |
2210 | break; | |
2211 | ||
2212 | case 32: | |
2213 | // Dragging with mouse1 down | |
d4a29741 | 2214 | eventMouse1 = true; |
7b5261bc | 2215 | mouse1 = true; |
d4a29741 | 2216 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2217 | break; |
2218 | ||
2219 | case 33: | |
2220 | // Dragging with mouse2 down | |
d4a29741 | 2221 | eventMouse2 = true; |
7b5261bc | 2222 | mouse2 = true; |
d4a29741 | 2223 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2224 | break; |
2225 | ||
2226 | case 34: | |
2227 | // Dragging with mouse3 down | |
d4a29741 | 2228 | eventMouse3 = true; |
7b5261bc | 2229 | mouse3 = true; |
d4a29741 | 2230 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2231 | break; |
2232 | ||
2233 | case 96: | |
2234 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 2235 | eventMouse2 = true; |
7b5261bc | 2236 | mouse2 = true; |
d4a29741 | 2237 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2238 | break; |
2239 | ||
2240 | case 97: | |
2241 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 2242 | eventMouse2 = true; |
7b5261bc | 2243 | mouse2 = true; |
d4a29741 | 2244 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2245 | break; |
2246 | ||
2247 | case 64: | |
d4a29741 | 2248 | eventMouseWheelUp = true; |
7b5261bc KL |
2249 | break; |
2250 | ||
2251 | case 65: | |
d4a29741 | 2252 | eventMouseWheelDown = true; |
7b5261bc KL |
2253 | break; |
2254 | ||
2255 | default: | |
2256 | // Unknown, just make it motion | |
d4a29741 | 2257 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2258 | break; |
2259 | } | |
d4a29741 KL |
2260 | return new TMouseEvent(eventType, x, y, x, y, |
2261 | eventMouse1, eventMouse2, eventMouse3, | |
2262 | eventMouseWheelUp, eventMouseWheelDown); | |
b1589621 KL |
2263 | } |
2264 | ||
b5f2a6db KL |
2265 | /** |
2266 | * Produce mouse events based on "Any event tracking" and SGR | |
2267 | * coordinates. See | |
2268 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2269 | * | |
2270 | * @param release if true, this was a release ('m') | |
2271 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2272 | */ | |
2273 | private TInputEvent parseMouseSGR(final boolean release) { | |
2274 | // SGR extended coordinates - mode 1006 | |
2275 | if (params.size() < 3) { | |
2276 | // Invalid position, bail out. | |
2277 | return null; | |
2278 | } | |
2279 | int buttons = Integer.parseInt(params.get(0)); | |
2280 | int x = Integer.parseInt(params.get(1)) - 1; | |
2281 | int y = Integer.parseInt(params.get(2)) - 1; | |
2282 | ||
2283 | // Clamp X and Y to the physical screen coordinates. | |
2284 | if (x >= windowResize.getWidth()) { | |
2285 | x = windowResize.getWidth() - 1; | |
2286 | } | |
2287 | if (y >= windowResize.getHeight()) { | |
2288 | y = windowResize.getHeight() - 1; | |
2289 | } | |
2290 | ||
2291 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; | |
2292 | boolean eventMouse1 = false; | |
2293 | boolean eventMouse2 = false; | |
2294 | boolean eventMouse3 = false; | |
2295 | boolean eventMouseWheelUp = false; | |
2296 | boolean eventMouseWheelDown = false; | |
2297 | ||
2298 | if (release) { | |
2299 | eventType = TMouseEvent.Type.MOUSE_UP; | |
2300 | } | |
2301 | ||
2302 | switch (buttons) { | |
2303 | case 0: | |
2304 | eventMouse1 = true; | |
2305 | break; | |
2306 | case 1: | |
2307 | eventMouse2 = true; | |
2308 | break; | |
2309 | case 2: | |
2310 | eventMouse3 = true; | |
2311 | break; | |
2312 | case 35: | |
2313 | // Motion only, no buttons down | |
2314 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2315 | break; | |
2316 | ||
2317 | case 32: | |
2318 | // Dragging with mouse1 down | |
2319 | eventMouse1 = true; | |
2320 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2321 | break; | |
2322 | ||
2323 | case 33: | |
2324 | // Dragging with mouse2 down | |
2325 | eventMouse2 = true; | |
2326 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2327 | break; | |
2328 | ||
2329 | case 34: | |
2330 | // Dragging with mouse3 down | |
2331 | eventMouse3 = true; | |
2332 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2333 | break; | |
2334 | ||
2335 | case 96: | |
2336 | // Dragging with mouse2 down after wheelUp | |
2337 | eventMouse2 = true; | |
2338 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2339 | break; | |
2340 | ||
2341 | case 97: | |
2342 | // Dragging with mouse2 down after wheelDown | |
2343 | eventMouse2 = true; | |
2344 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2345 | break; | |
2346 | ||
2347 | case 64: | |
2348 | eventMouseWheelUp = true; | |
2349 | break; | |
2350 | ||
2351 | case 65: | |
2352 | eventMouseWheelDown = true; | |
2353 | break; | |
2354 | ||
2355 | default: | |
2356 | // Unknown, bail out | |
2357 | return null; | |
2358 | } | |
2359 | return new TMouseEvent(eventType, x, y, x, y, | |
2360 | eventMouse1, eventMouse2, eventMouse3, | |
2361 | eventMouseWheelUp, eventMouseWheelDown); | |
2362 | } | |
2363 | ||
05dbb28d | 2364 | /** |
623a1bd1 | 2365 | * Return any events in the IO queue due to timeout. |
b1589621 | 2366 | * |
623a1bd1 | 2367 | * @param queue list to append new events to |
b1589621 | 2368 | */ |
a83fea2b | 2369 | private void getIdleEvents(final List<TInputEvent> queue) { |
be72cb5c | 2370 | long nowTime = System.currentTimeMillis(); |
7b5261bc KL |
2371 | |
2372 | // Check for new window size | |
be72cb5c | 2373 | long windowSizeDelay = nowTime - windowSizeTime; |
a83fea2b | 2374 | if (windowSizeDelay > 1000) { |
9696a8f6 KL |
2375 | int oldTextWidth = getTextWidth(); |
2376 | int oldTextHeight = getTextHeight(); | |
2377 | ||
a83fea2b KL |
2378 | sessionInfo.queryWindowSize(); |
2379 | int newWidth = sessionInfo.getWindowWidth(); | |
2380 | int newHeight = sessionInfo.getWindowHeight(); | |
85c07c5e | 2381 | |
a83fea2b KL |
2382 | if ((newWidth != windowResize.getWidth()) |
2383 | || (newHeight != windowResize.getHeight()) | |
2384 | ) { | |
85c07c5e | 2385 | |
9696a8f6 KL |
2386 | // Request xterm report window dimensions in pixels again. |
2387 | // Between now and then, ensure that the reported text cell | |
2388 | // size is the same by setting widthPixels and heightPixels | |
2389 | // to match the new dimensions. | |
2390 | widthPixels = oldTextWidth * newWidth; | |
2391 | heightPixels = oldTextHeight * newHeight; | |
2392 | ||
85c07c5e KL |
2393 | if (debugToStderr) { |
2394 | System.err.println("Screen size changed, old size " + | |
2395 | windowResize); | |
2396 | System.err.println(" new size " + | |
2397 | newWidth + " x " + newHeight); | |
9696a8f6 KL |
2398 | System.err.println(" old pixels " + |
2399 | oldTextWidth + " x " + oldTextHeight); | |
2400 | System.err.println(" new pixels " + | |
2401 | getTextWidth() + " x " + getTextHeight()); | |
85c07c5e KL |
2402 | } |
2403 | ||
a69ed767 KL |
2404 | this.output.printf("%s", xtermReportWindowPixelDimensions()); |
2405 | this.output.flush(); | |
2406 | ||
a83fea2b KL |
2407 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, |
2408 | newWidth, newHeight); | |
2409 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
2410 | newWidth, newHeight); | |
2411 | queue.add(event); | |
7b5261bc | 2412 | } |
be72cb5c | 2413 | windowSizeTime = nowTime; |
7b5261bc KL |
2414 | } |
2415 | ||
a83fea2b KL |
2416 | // ESCDELAY type timeout |
2417 | if (state == ParseState.ESCAPE) { | |
be72cb5c | 2418 | long escDelay = nowTime - escapeTime; |
a83fea2b KL |
2419 | if (escDelay > 100) { |
2420 | // After 0.1 seconds, assume a true escape character | |
2421 | queue.add(controlChar((char)0x1B, false)); | |
42873e30 | 2422 | resetParser(); |
7b5261bc KL |
2423 | } |
2424 | } | |
b1589621 KL |
2425 | } |
2426 | ||
32437017 KL |
2427 | /** |
2428 | * Returns true if the CSI parameter for a keyboard command means that | |
2429 | * shift was down. | |
2430 | */ | |
2431 | private boolean csiIsShift(final String x) { | |
2432 | if ((x.equals("2")) | |
2433 | || (x.equals("4")) | |
2434 | || (x.equals("6")) | |
2435 | || (x.equals("8")) | |
2436 | ) { | |
2437 | return true; | |
2438 | } | |
2439 | return false; | |
2440 | } | |
2441 | ||
2442 | /** | |
2443 | * Returns true if the CSI parameter for a keyboard command means that | |
2444 | * alt was down. | |
2445 | */ | |
2446 | private boolean csiIsAlt(final String x) { | |
2447 | if ((x.equals("3")) | |
2448 | || (x.equals("4")) | |
2449 | || (x.equals("7")) | |
2450 | || (x.equals("8")) | |
2451 | ) { | |
2452 | return true; | |
2453 | } | |
2454 | return false; | |
2455 | } | |
2456 | ||
2457 | /** | |
2458 | * Returns true if the CSI parameter for a keyboard command means that | |
2459 | * ctrl was down. | |
2460 | */ | |
2461 | private boolean csiIsCtrl(final String x) { | |
2462 | if ((x.equals("5")) | |
2463 | || (x.equals("6")) | |
2464 | || (x.equals("7")) | |
2465 | || (x.equals("8")) | |
2466 | ) { | |
2467 | return true; | |
2468 | } | |
2469 | return false; | |
2470 | } | |
2471 | ||
b1589621 KL |
2472 | /** |
2473 | * Parses the next character of input to see if an InputEvent is | |
2474 | * fully here. | |
2475 | * | |
623a1bd1 | 2476 | * @param events list to append new events to |
05dbb28d | 2477 | * @param ch Unicode code point |
b1589621 | 2478 | */ |
7b5261bc KL |
2479 | private void processChar(final List<TInputEvent> events, final char ch) { |
2480 | ||
7b5261bc | 2481 | // ESCDELAY type timeout |
be72cb5c | 2482 | long nowTime = System.currentTimeMillis(); |
7b5261bc | 2483 | if (state == ParseState.ESCAPE) { |
be72cb5c | 2484 | long escDelay = nowTime - escapeTime; |
7b5261bc KL |
2485 | if (escDelay > 250) { |
2486 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 2487 | events.add(controlChar((char)0x1B, false)); |
42873e30 | 2488 | resetParser(); |
7b5261bc KL |
2489 | } |
2490 | } | |
2491 | ||
b299e69c KL |
2492 | // TKeypress fields |
2493 | boolean ctrl = false; | |
2494 | boolean alt = false; | |
2495 | boolean shift = false; | |
b299e69c | 2496 | |
7b5261bc KL |
2497 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
2498 | ||
2499 | switch (state) { | |
2500 | case GROUND: | |
2501 | ||
2502 | if (ch == 0x1B) { | |
2503 | state = ParseState.ESCAPE; | |
be72cb5c | 2504 | escapeTime = nowTime; |
7b5261bc KL |
2505 | return; |
2506 | } | |
2507 | ||
2508 | if (ch <= 0x1F) { | |
2509 | // Control character | |
b299e69c | 2510 | events.add(controlChar(ch, false)); |
42873e30 | 2511 | resetParser(); |
7b5261bc KL |
2512 | return; |
2513 | } | |
2514 | ||
2515 | if (ch >= 0x20) { | |
2516 | // Normal character | |
b299e69c KL |
2517 | events.add(new TKeypressEvent(false, 0, ch, |
2518 | false, false, false)); | |
42873e30 | 2519 | resetParser(); |
7b5261bc KL |
2520 | return; |
2521 | } | |
2522 | ||
2523 | break; | |
2524 | ||
2525 | case ESCAPE: | |
2526 | if (ch <= 0x1F) { | |
2527 | // ALT-Control character | |
b299e69c | 2528 | events.add(controlChar(ch, true)); |
42873e30 | 2529 | resetParser(); |
7b5261bc KL |
2530 | return; |
2531 | } | |
2532 | ||
2533 | if (ch == 'O') { | |
2534 | // This will be one of the function keys | |
2535 | state = ParseState.ESCAPE_INTERMEDIATE; | |
2536 | return; | |
2537 | } | |
2538 | ||
2539 | // '[' goes to CSI_ENTRY | |
2540 | if (ch == '[') { | |
2541 | state = ParseState.CSI_ENTRY; | |
2542 | return; | |
2543 | } | |
2544 | ||
2545 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 2546 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 2547 | shift = true; |
7b5261bc | 2548 | } |
b299e69c KL |
2549 | alt = true; |
2550 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
42873e30 | 2551 | resetParser(); |
7b5261bc KL |
2552 | return; |
2553 | ||
2554 | case ESCAPE_INTERMEDIATE: | |
2555 | if ((ch >= 'P') && (ch <= 'S')) { | |
2556 | // Function key | |
7b5261bc KL |
2557 | switch (ch) { |
2558 | case 'P': | |
b299e69c | 2559 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
2560 | break; |
2561 | case 'Q': | |
b299e69c | 2562 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
2563 | break; |
2564 | case 'R': | |
b299e69c | 2565 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
2566 | break; |
2567 | case 'S': | |
b299e69c | 2568 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
2569 | break; |
2570 | default: | |
2571 | break; | |
2572 | } | |
42873e30 | 2573 | resetParser(); |
7b5261bc KL |
2574 | return; |
2575 | } | |
2576 | ||
2577 | // Unknown keystroke, ignore | |
42873e30 | 2578 | resetParser(); |
7b5261bc KL |
2579 | return; |
2580 | ||
2581 | case CSI_ENTRY: | |
2582 | // Numbers - parameter values | |
2583 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2584 | params.set(params.size() - 1, |
2585 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2586 | state = ParseState.CSI_PARAM; |
2587 | return; | |
2588 | } | |
2589 | // Parameter separator | |
2590 | if (ch == ';') { | |
a83fea2b | 2591 | params.add(""); |
7b5261bc KL |
2592 | return; |
2593 | } | |
2594 | ||
2595 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2596 | switch (ch) { | |
2597 | case 'A': | |
2598 | // Up | |
b299e69c | 2599 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2600 | resetParser(); |
7b5261bc KL |
2601 | return; |
2602 | case 'B': | |
2603 | // Down | |
b299e69c | 2604 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2605 | resetParser(); |
7b5261bc KL |
2606 | return; |
2607 | case 'C': | |
2608 | // Right | |
b299e69c | 2609 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2610 | resetParser(); |
7b5261bc KL |
2611 | return; |
2612 | case 'D': | |
2613 | // Left | |
b299e69c | 2614 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2615 | resetParser(); |
7b5261bc KL |
2616 | return; |
2617 | case 'H': | |
2618 | // Home | |
b299e69c | 2619 | events.add(new TKeypressEvent(kbHome)); |
42873e30 | 2620 | resetParser(); |
7b5261bc KL |
2621 | return; |
2622 | case 'F': | |
2623 | // End | |
b299e69c | 2624 | events.add(new TKeypressEvent(kbEnd)); |
42873e30 | 2625 | resetParser(); |
7b5261bc KL |
2626 | return; |
2627 | case 'Z': | |
2628 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 2629 | events.add(new TKeypressEvent(kbBackTab)); |
42873e30 | 2630 | resetParser(); |
7b5261bc KL |
2631 | return; |
2632 | case 'M': | |
2633 | // Mouse position | |
2634 | state = ParseState.MOUSE; | |
2635 | return; | |
b5f2a6db KL |
2636 | case '<': |
2637 | // Mouse position, SGR (1006) coordinates | |
2638 | state = ParseState.MOUSE_SGR; | |
2639 | return; | |
7b5261bc KL |
2640 | default: |
2641 | break; | |
2642 | } | |
2643 | } | |
2644 | ||
2645 | // Unknown keystroke, ignore | |
42873e30 | 2646 | resetParser(); |
7b5261bc KL |
2647 | return; |
2648 | ||
b5f2a6db KL |
2649 | case MOUSE_SGR: |
2650 | // Numbers - parameter values | |
2651 | if ((ch >= '0') && (ch <= '9')) { | |
2652 | params.set(params.size() - 1, | |
2653 | params.get(params.size() - 1) + ch); | |
2654 | return; | |
2655 | } | |
2656 | // Parameter separator | |
2657 | if (ch == ';') { | |
2658 | params.add(""); | |
2659 | return; | |
2660 | } | |
2661 | ||
2662 | switch (ch) { | |
2663 | case 'M': | |
2664 | // Generate a mouse press event | |
2665 | TInputEvent event = parseMouseSGR(false); | |
2666 | if (event != null) { | |
2667 | events.add(event); | |
2668 | } | |
42873e30 | 2669 | resetParser(); |
b5f2a6db KL |
2670 | return; |
2671 | case 'm': | |
2672 | // Generate a mouse release event | |
2673 | event = parseMouseSGR(true); | |
2674 | if (event != null) { | |
2675 | events.add(event); | |
2676 | } | |
42873e30 | 2677 | resetParser(); |
b5f2a6db KL |
2678 | return; |
2679 | default: | |
2680 | break; | |
2681 | } | |
2682 | ||
2683 | // Unknown keystroke, ignore | |
42873e30 | 2684 | resetParser(); |
b5f2a6db KL |
2685 | return; |
2686 | ||
7b5261bc KL |
2687 | case CSI_PARAM: |
2688 | // Numbers - parameter values | |
2689 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2690 | params.set(params.size() - 1, |
2691 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2692 | state = ParseState.CSI_PARAM; |
2693 | return; | |
2694 | } | |
2695 | // Parameter separator | |
2696 | if (ch == ';') { | |
92554d64 | 2697 | params.add(""); |
7b5261bc KL |
2698 | return; |
2699 | } | |
2700 | ||
2701 | if (ch == '~') { | |
2702 | events.add(csiFnKey()); | |
42873e30 | 2703 | resetParser(); |
7b5261bc KL |
2704 | return; |
2705 | } | |
2706 | ||
2707 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2708 | switch (ch) { | |
2709 | case 'A': | |
2710 | // Up | |
7b5261bc | 2711 | if (params.size() > 1) { |
32437017 KL |
2712 | shift = csiIsShift(params.get(1)); |
2713 | alt = csiIsAlt(params.get(1)); | |
2714 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2715 | } |
b299e69c | 2716 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2717 | resetParser(); |
7b5261bc KL |
2718 | return; |
2719 | case 'B': | |
2720 | // Down | |
7b5261bc | 2721 | if (params.size() > 1) { |
32437017 KL |
2722 | shift = csiIsShift(params.get(1)); |
2723 | alt = csiIsAlt(params.get(1)); | |
2724 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2725 | } |
b299e69c | 2726 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2727 | resetParser(); |
7b5261bc KL |
2728 | return; |
2729 | case 'C': | |
2730 | // Right | |
7b5261bc | 2731 | if (params.size() > 1) { |
32437017 KL |
2732 | shift = csiIsShift(params.get(1)); |
2733 | alt = csiIsAlt(params.get(1)); | |
2734 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2735 | } |
b299e69c | 2736 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2737 | resetParser(); |
7b5261bc KL |
2738 | return; |
2739 | case 'D': | |
2740 | // Left | |
7b5261bc | 2741 | if (params.size() > 1) { |
32437017 KL |
2742 | shift = csiIsShift(params.get(1)); |
2743 | alt = csiIsAlt(params.get(1)); | |
2744 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2745 | } |
b299e69c | 2746 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2747 | resetParser(); |
7b5261bc | 2748 | return; |
32437017 KL |
2749 | case 'H': |
2750 | // Home | |
2751 | if (params.size() > 1) { | |
2752 | shift = csiIsShift(params.get(1)); | |
2753 | alt = csiIsAlt(params.get(1)); | |
2754 | ctrl = csiIsCtrl(params.get(1)); | |
2755 | } | |
2756 | events.add(new TKeypressEvent(kbHome, alt, ctrl, shift)); | |
42873e30 | 2757 | resetParser(); |
32437017 KL |
2758 | return; |
2759 | case 'F': | |
2760 | // End | |
2761 | if (params.size() > 1) { | |
2762 | shift = csiIsShift(params.get(1)); | |
2763 | alt = csiIsAlt(params.get(1)); | |
2764 | ctrl = csiIsCtrl(params.get(1)); | |
2765 | } | |
2766 | events.add(new TKeypressEvent(kbEnd, alt, ctrl, shift)); | |
42873e30 | 2767 | resetParser(); |
32437017 | 2768 | return; |
a69ed767 KL |
2769 | case 't': |
2770 | // windowOps | |
2771 | if ((params.size() > 2) && (params.get(0).equals("4"))) { | |
2772 | if (debugToStderr) { | |
2773 | System.err.printf("windowOp pixels: " + | |
2774 | "height %s width %s\n", | |
2775 | params.get(1), params.get(2)); | |
2776 | } | |
2777 | try { | |
2778 | widthPixels = Integer.parseInt(params.get(2)); | |
2779 | heightPixels = Integer.parseInt(params.get(1)); | |
2780 | } catch (NumberFormatException e) { | |
2781 | if (debugToStderr) { | |
2782 | e.printStackTrace(); | |
2783 | } | |
2784 | } | |
2785 | if (widthPixels <= 0) { | |
2786 | widthPixels = 640; | |
2787 | } | |
2788 | if (heightPixels <= 0) { | |
2789 | heightPixels = 400; | |
2790 | } | |
2791 | } | |
739ada62 KL |
2792 | if ((params.size() > 2) && (params.get(0).equals("6"))) { |
2793 | if (debugToStderr) { | |
2794 | System.err.printf("windowOp text cell pixels: " + | |
2795 | "height %s width %s\n", | |
2796 | params.get(1), params.get(2)); | |
2797 | } | |
2798 | try { | |
2799 | widthPixels = width * Integer.parseInt(params.get(2)); | |
2800 | heightPixels = height * Integer.parseInt(params.get(1)); | |
2801 | } catch (NumberFormatException e) { | |
2802 | if (debugToStderr) { | |
2803 | e.printStackTrace(); | |
2804 | } | |
2805 | } | |
2806 | if (widthPixels <= 0) { | |
2807 | widthPixels = 640; | |
2808 | } | |
2809 | if (heightPixels <= 0) { | |
2810 | heightPixels = 400; | |
2811 | } | |
2812 | } | |
a69ed767 KL |
2813 | resetParser(); |
2814 | return; | |
7b5261bc KL |
2815 | default: |
2816 | break; | |
2817 | } | |
2818 | } | |
2819 | ||
2820 | // Unknown keystroke, ignore | |
42873e30 | 2821 | resetParser(); |
7b5261bc KL |
2822 | return; |
2823 | ||
2824 | case MOUSE: | |
92554d64 | 2825 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
2826 | if (params.get(0).length() == 3) { |
2827 | // We have enough to generate a mouse event | |
2828 | events.add(parseMouse()); | |
42873e30 | 2829 | resetParser(); |
7b5261bc KL |
2830 | } |
2831 | return; | |
2832 | ||
2833 | default: | |
2834 | break; | |
2835 | } | |
2836 | ||
2837 | // This "should" be impossible to reach | |
2838 | return; | |
b1589621 KL |
2839 | } |
2840 | ||
a69ed767 KL |
2841 | /** |
2842 | * Request (u)xterm to report the current window size dimensions. | |
2843 | * | |
2844 | * @return the string to emit to xterm | |
2845 | */ | |
2846 | private String xtermReportWindowPixelDimensions() { | |
739ada62 KL |
2847 | // We will ask for both window and text cell dimensions, and |
2848 | // hopefully one of them will work. | |
2849 | return "\033[14t\033[16t"; | |
a69ed767 KL |
2850 | } |
2851 | ||
b1589621 | 2852 | /** |
05dbb28d KL |
2853 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
2854 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
2855 | * enabled. | |
b1589621 | 2856 | * |
05dbb28d KL |
2857 | * @param on if true, enable metaSendsEscape |
2858 | * @return the string to emit to xterm | |
b1589621 | 2859 | */ |
b5f2a6db | 2860 | private String xtermMetaSendsEscape(final boolean on) { |
7b5261bc KL |
2861 | if (on) { |
2862 | return "\033[?1036h\033[?1034l"; | |
2863 | } | |
2864 | return "\033[?1036l"; | |
b1589621 KL |
2865 | } |
2866 | ||
55d2b2c2 | 2867 | /** |
42873e30 | 2868 | * Create an xterm OSC sequence to change the window title. |
55d2b2c2 KL |
2869 | * |
2870 | * @param title the new title | |
2871 | * @return the string to emit to xterm | |
2872 | */ | |
42873e30 | 2873 | private String getSetTitleString(final String title) { |
55d2b2c2 KL |
2874 | return "\033]2;" + title + "\007"; |
2875 | } | |
2876 | ||
a69ed767 KL |
2877 | // ------------------------------------------------------------------------ |
2878 | // Sixel output support --------------------------------------------------- | |
2879 | // ------------------------------------------------------------------------ | |
2880 | ||
a75902fa KL |
2881 | /** |
2882 | * Get the number of colors in the sixel palette. | |
2883 | * | |
2884 | * @return the palette size | |
2885 | */ | |
2886 | public int getSixelPaletteSize() { | |
2887 | return sixelPaletteSize; | |
2888 | } | |
2889 | ||
2890 | /** | |
2891 | * Set the number of colors in the sixel palette. | |
2892 | * | |
2893 | * @param paletteSize the new palette size | |
2894 | */ | |
2895 | public void setSixelPaletteSize(final int paletteSize) { | |
2896 | if (paletteSize == sixelPaletteSize) { | |
2897 | return; | |
2898 | } | |
2899 | ||
2900 | switch (paletteSize) { | |
2901 | case 2: | |
2902 | case 256: | |
2903 | case 512: | |
2904 | case 1024: | |
2905 | case 2048: | |
2906 | break; | |
2907 | default: | |
2908 | throw new IllegalArgumentException("Unsupported sixel palette " + | |
2909 | " size: " + paletteSize); | |
2910 | } | |
2911 | ||
2912 | // Don't step on the screen refresh thread. | |
2913 | synchronized (this) { | |
2914 | sixelPaletteSize = paletteSize; | |
2915 | palette = null; | |
2916 | sixelCache = null; | |
2917 | clearPhysical(); | |
2918 | } | |
2919 | } | |
2920 | ||
a69ed767 KL |
2921 | /** |
2922 | * Start a sixel string for display one row's worth of bitmap data. | |
2923 | * | |
2924 | * @param x column coordinate. 0 is the left-most column. | |
2925 | * @param y row coordinate. 0 is the top-most row. | |
2926 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2927 | */ | |
2928 | private String startSixel(final int x, final int y) { | |
2929 | StringBuilder sb = new StringBuilder(); | |
2930 | ||
2931 | assert (sixel == true); | |
2932 | ||
2933 | // Place the cursor | |
2934 | sb.append(gotoXY(x, y)); | |
2935 | ||
2936 | // DCS | |
2937 | sb.append("\033Pq"); | |
2938 | ||
2939 | if (palette == null) { | |
2940 | palette = new SixelPalette(); | |
2941 | } | |
2942 | ||
2943 | return sb.toString(); | |
2944 | } | |
2945 | ||
2946 | /** | |
2947 | * End a sixel string for display one row's worth of bitmap data. | |
2948 | * | |
2949 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2950 | */ | |
2951 | private String endSixel() { | |
2952 | assert (sixel == true); | |
2953 | ||
2954 | // ST | |
2955 | return ("\033\\"); | |
2956 | } | |
2957 | ||
2958 | /** | |
2959 | * Create a sixel string representing a row of several cells containing | |
2960 | * bitmap data. | |
2961 | * | |
2962 | * @param x column coordinate. 0 is the left-most column. | |
2963 | * @param y row coordinate. 0 is the top-most row. | |
2964 | * @param cells the cells containing the bitmap data | |
2965 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2966 | */ | |
2967 | private String toSixel(final int x, final int y, | |
2968 | final ArrayList<Cell> cells) { | |
2969 | ||
2970 | StringBuilder sb = new StringBuilder(); | |
2971 | ||
a69ed767 KL |
2972 | assert (cells != null); |
2973 | assert (cells.size() > 0); | |
2974 | assert (cells.get(0).getImage() != null); | |
2975 | ||
e23ea538 KL |
2976 | if (sixel == false) { |
2977 | sb.append(normal()); | |
2978 | sb.append(gotoXY(x, y)); | |
2979 | for (int i = 0; i < cells.size(); i++) { | |
2980 | sb.append(' '); | |
2981 | } | |
2982 | return sb.toString(); | |
2983 | } | |
2984 | ||
a69ed767 | 2985 | if (sixelCache == null) { |
9544763d | 2986 | sixelCache = new ImageCache(height * 10); |
a69ed767 KL |
2987 | } |
2988 | ||
2989 | // Save and get rows to/from the cache that do NOT have inverted | |
2990 | // cells. | |
2991 | boolean saveInCache = true; | |
2992 | for (Cell cell: cells) { | |
2993 | if (cell.isInvertedImage()) { | |
2994 | saveInCache = false; | |
2995 | } | |
2996 | } | |
2997 | if (saveInCache) { | |
2998 | String cachedResult = sixelCache.get(cells); | |
2999 | if (cachedResult != null) { | |
3000 | // System.err.println("CACHE HIT"); | |
3001 | sb.append(startSixel(x, y)); | |
3002 | sb.append(cachedResult); | |
3003 | sb.append(endSixel()); | |
3004 | return sb.toString(); | |
3005 | } | |
3006 | // System.err.println("CACHE MISS"); | |
3007 | } | |
3008 | ||
3009 | int imageWidth = cells.get(0).getImage().getWidth(); | |
3010 | int imageHeight = cells.get(0).getImage().getHeight(); | |
3011 | ||
3012 | // cells.get(x).getImage() has a dithered bitmap containing indexes | |
3013 | // into the color palette. Piece these together into one larger | |
3014 | // image for final rendering. | |
3015 | int totalWidth = 0; | |
3016 | int fullWidth = cells.size() * getTextWidth(); | |
3017 | int fullHeight = getTextHeight(); | |
3018 | for (int i = 0; i < cells.size(); i++) { | |
3019 | totalWidth += cells.get(i).getImage().getWidth(); | |
3020 | } | |
3021 | ||
3022 | BufferedImage image = new BufferedImage(fullWidth, | |
3023 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
3024 | ||
3025 | int [] rgbArray; | |
3026 | for (int i = 0; i < cells.size() - 1; i++) { | |
ceee6bca KL |
3027 | int tileWidth = Math.min(cells.get(i).getImage().getWidth(), |
3028 | imageWidth); | |
3029 | int tileHeight = Math.min(cells.get(i).getImage().getHeight(), | |
3030 | imageHeight); | |
3af53a35 KL |
3031 | if (false && cells.get(i).isInvertedImage()) { |
3032 | // I used to put an all-white cell over the cursor, don't do | |
3033 | // that anymore. | |
a69ed767 KL |
3034 | rgbArray = new int[imageWidth * imageHeight]; |
3035 | for (int j = 0; j < rgbArray.length; j++) { | |
3036 | rgbArray[j] = 0xFFFFFF; | |
3037 | } | |
3038 | } else { | |
ceee6bca KL |
3039 | try { |
3040 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
3041 | tileWidth, tileHeight, null, 0, tileWidth); | |
3042 | } catch (Exception e) { | |
3043 | throw new RuntimeException("image " + imageWidth + "x" + | |
3044 | imageHeight + | |
3045 | "tile " + tileWidth + "x" + | |
3046 | tileHeight + | |
3047 | " cells.get(i).getImage() " + | |
3048 | cells.get(i).getImage() + | |
3049 | " i " + i + | |
3050 | " fullWidth " + fullWidth + | |
3051 | " fullHeight " + fullHeight, e); | |
3052 | } | |
a69ed767 | 3053 | } |
9696a8f6 KL |
3054 | |
3055 | /* | |
3056 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
3057 | i * imageWidth, 0, imageWidth, imageHeight, | |
3058 | 0, imageWidth); | |
3059 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
3060 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
3061 | */ | |
3062 | ||
ceee6bca KL |
3063 | image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, |
3064 | rgbArray, 0, tileWidth); | |
3065 | if (tileHeight < fullHeight) { | |
a69ed767 KL |
3066 | int backgroundColor = cells.get(i).getBackground().getRGB(); |
3067 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3068 | for (int imageY = imageHeight; imageY < fullHeight; | |
3069 | imageY++) { | |
3070 | ||
3071 | image.setRGB(imageX, imageY, backgroundColor); | |
3072 | } | |
3073 | } | |
3074 | } | |
3075 | } | |
3076 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
3af53a35 KL |
3077 | if (false && cells.get(cells.size() - 1).isInvertedImage()) { |
3078 | // I used to put an all-white cell over the cursor, don't do that | |
3079 | // anymore. | |
a69ed767 KL |
3080 | rgbArray = new int[totalWidth * imageHeight]; |
3081 | for (int j = 0; j < rgbArray.length; j++) { | |
3082 | rgbArray[j] = 0xFFFFFF; | |
3083 | } | |
3084 | } else { | |
ceee6bca KL |
3085 | try { |
3086 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
3087 | totalWidth, imageHeight, null, 0, totalWidth); | |
3088 | } catch (Exception e) { | |
3089 | throw new RuntimeException("image " + imageWidth + "x" + | |
3090 | imageHeight + " cells.get(cells.size() - 1).getImage() " + | |
3091 | cells.get(cells.size() - 1).getImage(), e); | |
3092 | } | |
a69ed767 KL |
3093 | } |
3094 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
3095 | imageHeight, rgbArray, 0, totalWidth); | |
3096 | ||
3097 | if (totalWidth < getTextWidth()) { | |
3098 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); | |
3099 | ||
3100 | for (int imageX = image.getWidth() - totalWidth; | |
3101 | imageX < image.getWidth(); imageX++) { | |
3102 | ||
3103 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
3104 | image.setRGB(imageX, imageY, backgroundColor); | |
3105 | } | |
3106 | } | |
3107 | } | |
3108 | ||
3109 | // Dither the image. It is ok to lose the original here. | |
3110 | if (palette == null) { | |
3111 | palette = new SixelPalette(); | |
3112 | } | |
3113 | image = palette.ditherImage(image); | |
3114 | ||
741b75d7 KL |
3115 | // Collect the raster information |
3116 | int rasterHeight = 0; | |
3117 | int rasterWidth = image.getWidth(); | |
3118 | ||
a69ed767 KL |
3119 | // Emit the palette, but only for the colors actually used by these |
3120 | // cells. | |
a75902fa | 3121 | boolean [] usedColors = new boolean[sixelPaletteSize]; |
a69ed767 KL |
3122 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { |
3123 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
3124 | usedColors[image.getRGB(imageX, imageY)] = true; | |
3125 | } | |
3126 | } | |
3127 | palette.emitPalette(sb, usedColors); | |
3128 | ||
3129 | // Render the entire row of cells. | |
3130 | for (int currentRow = 0; currentRow < fullHeight; currentRow += 6) { | |
3131 | int [][] sixels = new int[image.getWidth()][6]; | |
3132 | ||
3133 | // See which colors are actually used in this band of sixels. | |
3134 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3135 | for (int imageY = 0; | |
3136 | (imageY < 6) && (imageY + currentRow < fullHeight); | |
3137 | imageY++) { | |
3138 | ||
3139 | int colorIdx = image.getRGB(imageX, imageY + currentRow); | |
3140 | assert (colorIdx >= 0); | |
a75902fa | 3141 | assert (colorIdx < sixelPaletteSize); |
a69ed767 KL |
3142 | |
3143 | sixels[imageX][imageY] = colorIdx; | |
3144 | } | |
3145 | } | |
3146 | ||
a75902fa | 3147 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
3148 | boolean isUsed = false; |
3149 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3150 | for (int j = 0; j < 6; j++) { | |
3151 | if (sixels[imageX][j] == i) { | |
3152 | isUsed = true; | |
3153 | } | |
3154 | } | |
3155 | } | |
3156 | if (isUsed == false) { | |
3157 | continue; | |
3158 | } | |
3159 | ||
3160 | // Set to the beginning of scan line for the next set of | |
3161 | // colored pixels, and select the color. | |
3162 | sb.append(String.format("$#%d", i)); | |
3163 | ||
fa535516 KL |
3164 | int oldData = -1; |
3165 | int oldDataCount = 0; | |
a69ed767 KL |
3166 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { |
3167 | ||
3168 | // Add up all the pixels that match this color. | |
3169 | int data = 0; | |
3170 | for (int j = 0; | |
3171 | (j < 6) && (currentRow + j < fullHeight); | |
3172 | j++) { | |
3173 | ||
3174 | if (sixels[imageX][j] == i) { | |
3175 | switch (j) { | |
3176 | case 0: | |
3177 | data += 1; | |
3178 | break; | |
3179 | case 1: | |
3180 | data += 2; | |
3181 | break; | |
3182 | case 2: | |
3183 | data += 4; | |
3184 | break; | |
3185 | case 3: | |
3186 | data += 8; | |
3187 | break; | |
3188 | case 4: | |
3189 | data += 16; | |
3190 | break; | |
3191 | case 5: | |
3192 | data += 32; | |
3193 | break; | |
3194 | } | |
741b75d7 KL |
3195 | if ((currentRow + j + 1) > rasterHeight) { |
3196 | rasterHeight = currentRow + j + 1; | |
3197 | } | |
a69ed767 KL |
3198 | } |
3199 | } | |
3200 | assert (data >= 0); | |
fa535516 | 3201 | assert (data < 64); |
a69ed767 | 3202 | data += 63; |
e6469faa | 3203 | |
fa535516 KL |
3204 | if (data == oldData) { |
3205 | oldDataCount++; | |
3206 | } else { | |
3207 | if (oldDataCount == 1) { | |
3208 | sb.append((char) oldData); | |
3209 | } else if (oldDataCount > 1) { | |
3210 | sb.append(String.format("!%d", oldDataCount)); | |
3211 | sb.append((char) oldData); | |
3212 | } | |
3213 | oldDataCount = 1; | |
3214 | oldData = data; | |
3215 | } | |
e6469faa | 3216 | |
a69ed767 | 3217 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) |
fa535516 KL |
3218 | |
3219 | // Emit the last sequence. | |
3220 | if (oldDataCount == 1) { | |
3221 | sb.append((char) oldData); | |
3222 | } else if (oldDataCount > 1) { | |
3223 | sb.append(String.format("!%d", oldDataCount)); | |
3224 | sb.append((char) oldData); | |
3225 | } | |
3226 | ||
a75902fa | 3227 | } // for (int i = 0; i < sixelPaletteSize; i++) |
a69ed767 KL |
3228 | |
3229 | // Advance to the next scan line. | |
3230 | sb.append("-"); | |
3231 | ||
3232 | } // for (int currentRow = 0; currentRow < imageHeight; currentRow += 6) | |
3233 | ||
3234 | // Kill the very last "-", because it is unnecessary. | |
3235 | sb.deleteCharAt(sb.length() - 1); | |
3236 | ||
741b75d7 KL |
3237 | // Add the raster information |
3238 | sb.insert(0, String.format("\"1;1;%d;%d", rasterWidth, rasterHeight)); | |
3239 | ||
a69ed767 KL |
3240 | if (saveInCache) { |
3241 | // This row is OK to save into the cache. | |
3242 | sixelCache.put(cells, sb.toString()); | |
3243 | } | |
3244 | ||
3245 | return (startSixel(x, y) + sb.toString() + endSixel()); | |
3246 | } | |
3247 | ||
5fc7bf09 KL |
3248 | /** |
3249 | * Get the sixel support flag. | |
3250 | * | |
3251 | * @return true if this terminal is emitting sixel | |
3252 | */ | |
3253 | public boolean hasSixel() { | |
3254 | return sixel; | |
3255 | } | |
3256 | ||
a69ed767 KL |
3257 | // ------------------------------------------------------------------------ |
3258 | // End sixel output support ----------------------------------------------- | |
3259 | // ------------------------------------------------------------------------ | |
9544763d KL |
3260 | |
3261 | // ------------------------------------------------------------------------ | |
3262 | // iTerm2 image output support -------------------------------------------- | |
3263 | // ------------------------------------------------------------------------ | |
3264 | ||
3265 | /** | |
3266 | * Create an iTerm2 images string representing a row of several cells | |
3267 | * containing bitmap data. | |
3268 | * | |
3269 | * @param x column coordinate. 0 is the left-most column. | |
3270 | * @param y row coordinate. 0 is the top-most row. | |
3271 | * @param cells the cells containing the bitmap data | |
3272 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3273 | */ | |
3274 | private String toIterm2Image(final int x, final int y, | |
3275 | final ArrayList<Cell> cells) { | |
3276 | ||
3277 | StringBuilder sb = new StringBuilder(); | |
3278 | ||
3279 | assert (cells != null); | |
3280 | assert (cells.size() > 0); | |
3281 | assert (cells.get(0).getImage() != null); | |
3282 | ||
3283 | if (iterm2Images == false) { | |
3284 | sb.append(normal()); | |
3285 | sb.append(gotoXY(x, y)); | |
3286 | for (int i = 0; i < cells.size(); i++) { | |
3287 | sb.append(' '); | |
3288 | } | |
3289 | return sb.toString(); | |
3290 | } | |
3291 | ||
3292 | if (iterm2Cache == null) { | |
3293 | iterm2Cache = new ImageCache(height * 10); | |
3294 | base64 = java.util.Base64.getEncoder(); | |
3295 | } | |
3296 | ||
3297 | // Save and get rows to/from the cache that do NOT have inverted | |
3298 | // cells. | |
3299 | boolean saveInCache = true; | |
3300 | for (Cell cell: cells) { | |
3301 | if (cell.isInvertedImage()) { | |
3302 | saveInCache = false; | |
3303 | } | |
3304 | } | |
3305 | if (saveInCache) { | |
3306 | String cachedResult = iterm2Cache.get(cells); | |
3307 | if (cachedResult != null) { | |
3308 | // System.err.println("CACHE HIT"); | |
3309 | sb.append(gotoXY(x, y)); | |
3310 | sb.append(cachedResult); | |
3311 | return sb.toString(); | |
3312 | } | |
3313 | // System.err.println("CACHE MISS"); | |
3314 | } | |
3315 | ||
3316 | int imageWidth = cells.get(0).getImage().getWidth(); | |
3317 | int imageHeight = cells.get(0).getImage().getHeight(); | |
3318 | ||
3319 | // cells.get(x).getImage() has a dithered bitmap containing indexes | |
3320 | // into the color palette. Piece these together into one larger | |
3321 | // image for final rendering. | |
3322 | int totalWidth = 0; | |
3323 | int fullWidth = cells.size() * getTextWidth(); | |
3324 | int fullHeight = getTextHeight(); | |
3325 | for (int i = 0; i < cells.size(); i++) { | |
3326 | totalWidth += cells.get(i).getImage().getWidth(); | |
3327 | } | |
3328 | ||
3329 | BufferedImage image = new BufferedImage(fullWidth, | |
3330 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
3331 | ||
3332 | int [] rgbArray; | |
3333 | for (int i = 0; i < cells.size() - 1; i++) { | |
3334 | int tileWidth = Math.min(cells.get(i).getImage().getWidth(), | |
3335 | imageWidth); | |
3336 | int tileHeight = Math.min(cells.get(i).getImage().getHeight(), | |
3337 | imageHeight); | |
3338 | if (false && cells.get(i).isInvertedImage()) { | |
3339 | // I used to put an all-white cell over the cursor, don't do | |
3340 | // that anymore. | |
3341 | rgbArray = new int[imageWidth * imageHeight]; | |
3342 | for (int j = 0; j < rgbArray.length; j++) { | |
3343 | rgbArray[j] = 0xFFFFFF; | |
3344 | } | |
3345 | } else { | |
3346 | try { | |
3347 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
3348 | tileWidth, tileHeight, null, 0, tileWidth); | |
3349 | } catch (Exception e) { | |
3350 | throw new RuntimeException("image " + imageWidth + "x" + | |
3351 | imageHeight + | |
3352 | "tile " + tileWidth + "x" + | |
3353 | tileHeight + | |
3354 | " cells.get(i).getImage() " + | |
3355 | cells.get(i).getImage() + | |
3356 | " i " + i + | |
3357 | " fullWidth " + fullWidth + | |
3358 | " fullHeight " + fullHeight, e); | |
3359 | } | |
3360 | } | |
3361 | ||
3362 | /* | |
3363 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
3364 | i * imageWidth, 0, imageWidth, imageHeight, | |
3365 | 0, imageWidth); | |
3366 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
3367 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
3368 | */ | |
3369 | ||
3370 | image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, | |
3371 | rgbArray, 0, tileWidth); | |
3372 | if (tileHeight < fullHeight) { | |
3373 | int backgroundColor = cells.get(i).getBackground().getRGB(); | |
3374 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3375 | for (int imageY = imageHeight; imageY < fullHeight; | |
3376 | imageY++) { | |
3377 | ||
3378 | image.setRGB(imageX, imageY, backgroundColor); | |
3379 | } | |
3380 | } | |
3381 | } | |
3382 | } | |
3383 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
3384 | if (false && cells.get(cells.size() - 1).isInvertedImage()) { | |
3385 | // I used to put an all-white cell over the cursor, don't do that | |
3386 | // anymore. | |
3387 | rgbArray = new int[totalWidth * imageHeight]; | |
3388 | for (int j = 0; j < rgbArray.length; j++) { | |
3389 | rgbArray[j] = 0xFFFFFF; | |
3390 | } | |
3391 | } else { | |
3392 | try { | |
3393 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
3394 | totalWidth, imageHeight, null, 0, totalWidth); | |
3395 | } catch (Exception e) { | |
3396 | throw new RuntimeException("image " + imageWidth + "x" + | |
3397 | imageHeight + " cells.get(cells.size() - 1).getImage() " + | |
3398 | cells.get(cells.size() - 1).getImage(), e); | |
3399 | } | |
3400 | } | |
3401 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
3402 | imageHeight, rgbArray, 0, totalWidth); | |
3403 | ||
3404 | if (totalWidth < getTextWidth()) { | |
3405 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); | |
3406 | ||
3407 | for (int imageX = image.getWidth() - totalWidth; | |
3408 | imageX < image.getWidth(); imageX++) { | |
3409 | ||
3410 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
3411 | image.setRGB(imageX, imageY, backgroundColor); | |
3412 | } | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | /* | |
3417 | * From https://iterm2.com/documentation-images.html: | |
3418 | * | |
3419 | * Protocol | |
3420 | * | |
3421 | * iTerm2 extends the xterm protocol with a set of proprietary escape | |
3422 | * sequences. In general, the pattern is: | |
3423 | * | |
3424 | * ESC ] 1337 ; key = value ^G | |
3425 | * | |
3426 | * Whitespace is shown here for ease of reading: in practice, no | |
3427 | * spaces should be used. | |
3428 | * | |
3429 | * For file transfer and inline images, the code is: | |
3430 | * | |
3431 | * ESC ] 1337 ; File = [optional arguments] : base-64 encoded file contents ^G | |
3432 | * | |
3433 | * The optional arguments are formatted as key=value with a semicolon | |
3434 | * between each key-value pair. They are described below: | |
3435 | * | |
3436 | * Key Description of value | |
3437 | * name base-64 encoded filename. Defaults to "Unnamed file". | |
3438 | * size File size in bytes. Optional; this is only used by the | |
3439 | * progress indicator. | |
3440 | * width Width to render. See notes below. | |
3441 | * height Height to render. See notes below. | |
3442 | * preserveAspectRatio If set to 0, then the image's inherent aspect | |
3443 | * ratio will not be respected; otherwise, it | |
3444 | * will fill the specified width and height as | |
3445 | * much as possible without stretching. Defaults | |
3446 | * to 1. | |
3447 | * inline If set to 1, the file will be displayed inline. Otherwise, | |
3448 | * it will be downloaded with no visual representation in the | |
3449 | * terminal session. Defaults to 0. | |
3450 | * | |
3451 | * The width and height are given as a number followed by a unit, or | |
3452 | * the word "auto". | |
3453 | * | |
3454 | * N: N character cells. | |
3455 | * Npx: N pixels. | |
3456 | * N%: N percent of the session's width or height. | |
3457 | * auto: The image's inherent size will be used to determine an | |
3458 | * appropriate dimension. | |
3459 | * | |
3460 | */ | |
3461 | ||
3462 | // File contents can be several image formats. We will use PNG. | |
3463 | ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream(1024); | |
3464 | try { | |
3465 | if (!ImageIO.write(image.getSubimage(0, 0, image.getWidth(), | |
3466 | Math.min(image.getHeight(), fullHeight)), | |
3467 | "PNG", pngOutputStream) | |
3468 | ) { | |
3469 | // We failed to render image, bail out. | |
3470 | return ""; | |
3471 | } | |
3472 | } catch (IOException e) { | |
3473 | // We failed to render image, bail out. | |
3474 | return ""; | |
3475 | } | |
3476 | ||
3477 | // iTerm2 does not advance the cursor automatically, so place it | |
3478 | // myself. | |
3479 | sb.append("\033]1337;File="); | |
3480 | /* | |
3481 | sb.append(String.format("width=$d;height=1;preserveAspectRatio=1;", | |
3482 | cells.size())); | |
3483 | */ | |
3484 | /* | |
3485 | sb.append(String.format("width=$dpx;height=%dpx;preserveAspectRatio=1;", | |
3486 | image.getWidth(), Math.min(image.getHeight(), | |
3487 | getTextHeight()))); | |
3488 | */ | |
3489 | sb.append("inline=1:"); | |
3490 | sb.append(base64.encodeToString(pngOutputStream.toByteArray())); | |
3491 | sb.append("\007"); | |
3492 | ||
3493 | if (saveInCache) { | |
3494 | // This row is OK to save into the cache. | |
3495 | iterm2Cache.put(cells, sb.toString()); | |
3496 | } | |
3497 | ||
3498 | return (gotoXY(x, y) + sb.toString()); | |
3499 | } | |
3500 | ||
3501 | /** | |
3502 | * Get the iTerm2 images support flag. | |
3503 | * | |
3504 | * @return true if this terminal is emitting iTerm2 images | |
3505 | */ | |
3506 | public boolean hasIterm2Images() { | |
3507 | return iterm2Images; | |
3508 | } | |
3509 | ||
3510 | // ------------------------------------------------------------------------ | |
3511 | // End iTerm2 image output support ---------------------------------------- | |
3512 | // ------------------------------------------------------------------------ | |
a69ed767 | 3513 | |
d91ac0f5 KL |
3514 | /** |
3515 | * Setup system colors to match DOS color palette. | |
3516 | */ | |
3517 | private void setDOSColors() { | |
3518 | MYBLACK = new java.awt.Color(0x00, 0x00, 0x00); | |
3519 | MYRED = new java.awt.Color(0xa8, 0x00, 0x00); | |
3520 | MYGREEN = new java.awt.Color(0x00, 0xa8, 0x00); | |
3521 | MYYELLOW = new java.awt.Color(0xa8, 0x54, 0x00); | |
3522 | MYBLUE = new java.awt.Color(0x00, 0x00, 0xa8); | |
3523 | MYMAGENTA = new java.awt.Color(0xa8, 0x00, 0xa8); | |
3524 | MYCYAN = new java.awt.Color(0x00, 0xa8, 0xa8); | |
3525 | MYWHITE = new java.awt.Color(0xa8, 0xa8, 0xa8); | |
3526 | MYBOLD_BLACK = new java.awt.Color(0x54, 0x54, 0x54); | |
3527 | MYBOLD_RED = new java.awt.Color(0xfc, 0x54, 0x54); | |
3528 | MYBOLD_GREEN = new java.awt.Color(0x54, 0xfc, 0x54); | |
3529 | MYBOLD_YELLOW = new java.awt.Color(0xfc, 0xfc, 0x54); | |
3530 | MYBOLD_BLUE = new java.awt.Color(0x54, 0x54, 0xfc); | |
3531 | MYBOLD_MAGENTA = new java.awt.Color(0xfc, 0x54, 0xfc); | |
3532 | MYBOLD_CYAN = new java.awt.Color(0x54, 0xfc, 0xfc); | |
3533 | MYBOLD_WHITE = new java.awt.Color(0xfc, 0xfc, 0xfc); | |
3534 | } | |
3535 | ||
3536 | /** | |
3537 | * Setup ECMA48 colors to match those provided in system properties. | |
3538 | */ | |
3539 | private void setCustomSystemColors() { | |
3540 | setDOSColors(); | |
3541 | ||
3542 | MYBLACK = getCustomColor("jexer.ECMA48.color0", MYBLACK); | |
3543 | MYRED = getCustomColor("jexer.ECMA48.color1", MYRED); | |
3544 | MYGREEN = getCustomColor("jexer.ECMA48.color2", MYGREEN); | |
3545 | MYYELLOW = getCustomColor("jexer.ECMA48.color3", MYYELLOW); | |
3546 | MYBLUE = getCustomColor("jexer.ECMA48.color4", MYBLUE); | |
3547 | MYMAGENTA = getCustomColor("jexer.ECMA48.color5", MYMAGENTA); | |
3548 | MYCYAN = getCustomColor("jexer.ECMA48.color6", MYCYAN); | |
3549 | MYWHITE = getCustomColor("jexer.ECMA48.color7", MYWHITE); | |
3550 | MYBOLD_BLACK = getCustomColor("jexer.ECMA48.color8", MYBOLD_BLACK); | |
3551 | MYBOLD_RED = getCustomColor("jexer.ECMA48.color9", MYBOLD_RED); | |
3552 | MYBOLD_GREEN = getCustomColor("jexer.ECMA48.color10", MYBOLD_GREEN); | |
3553 | MYBOLD_YELLOW = getCustomColor("jexer.ECMA48.color11", MYBOLD_YELLOW); | |
3554 | MYBOLD_BLUE = getCustomColor("jexer.ECMA48.color12", MYBOLD_BLUE); | |
3555 | MYBOLD_MAGENTA = getCustomColor("jexer.ECMA48.color13", MYBOLD_MAGENTA); | |
3556 | MYBOLD_CYAN = getCustomColor("jexer.ECMA48.color14", MYBOLD_CYAN); | |
3557 | MYBOLD_WHITE = getCustomColor("jexer.ECMA48.color15", MYBOLD_WHITE); | |
3558 | } | |
3559 | ||
3560 | /** | |
3561 | * Setup one system color to match the RGB value provided in system | |
3562 | * properties. | |
3563 | * | |
3564 | * @param key the system property key | |
3565 | * @param defaultColor the default color to return if key is not set, or | |
3566 | * incorrect | |
3567 | * @return a color from the RGB string, or defaultColor | |
3568 | */ | |
3569 | private java.awt.Color getCustomColor(final String key, | |
3570 | final java.awt.Color defaultColor) { | |
3571 | ||
3572 | String rgb = System.getProperty(key); | |
3573 | if (rgb == null) { | |
3574 | return defaultColor; | |
3575 | } | |
3576 | if (rgb.startsWith("#")) { | |
3577 | rgb = rgb.substring(1); | |
3578 | } | |
3579 | int rgbInt = 0; | |
3580 | try { | |
3581 | rgbInt = Integer.parseInt(rgb, 16); | |
3582 | } catch (NumberFormatException e) { | |
3583 | return defaultColor; | |
3584 | } | |
3585 | java.awt.Color color = new java.awt.Color((rgbInt & 0xFF0000) >>> 16, | |
3586 | (rgbInt & 0x00FF00) >>> 8, | |
3587 | (rgbInt & 0x0000FF)); | |
3588 | ||
3589 | return color; | |
3590 | } | |
3591 | ||
3592 | /** | |
3593 | * Create a T.416 RGB parameter sequence for a custom system color. | |
3594 | * | |
3595 | * @param color one of the MYBLACK, MYBOLD_BLUE, etc. colors | |
3596 | * @return the color portion of the string to emit to an ANSI / | |
3597 | * ECMA-style terminal | |
3598 | */ | |
3599 | private String systemColorRGB(final java.awt.Color color) { | |
3600 | return String.format("%d;%d;%d", color.getRed(), color.getGreen(), | |
3601 | color.getBlue()); | |
3602 | } | |
3603 | ||
b1589621 | 3604 | /** |
42873e30 | 3605 | * Create a SGR parameter sequence for a single color change. |
b1589621 | 3606 | * |
15ea4d73 | 3607 | * @param bold if true, set bold |
05dbb28d KL |
3608 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
3609 | * @param foreground if true, this is a foreground color | |
3610 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3611 | * e.g. "\033[42m" | |
b1589621 | 3612 | */ |
42873e30 | 3613 | private String color(final boolean bold, final Color color, |
15ea4d73 KL |
3614 | final boolean foreground) { |
3615 | return color(color, foreground, true) + | |
3616 | rgbColor(bold, color, foreground); | |
3617 | } | |
3618 | ||
051e2913 KL |
3619 | /** |
3620 | * Create a T.416 RGB parameter sequence for a single color change. | |
3621 | * | |
3622 | * @param colorRGB a 24-bit RGB value for foreground color | |
3623 | * @param foreground if true, this is a foreground color | |
3624 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3625 | * e.g. "\033[42m" | |
3626 | */ | |
3627 | private String colorRGB(final int colorRGB, final boolean foreground) { | |
3628 | ||
a69ed767 KL |
3629 | int colorRed = (colorRGB >>> 16) & 0xFF; |
3630 | int colorGreen = (colorRGB >>> 8) & 0xFF; | |
3631 | int colorBlue = colorRGB & 0xFF; | |
051e2913 KL |
3632 | |
3633 | StringBuilder sb = new StringBuilder(); | |
3634 | if (foreground) { | |
3635 | sb.append("\033[38;2;"); | |
3636 | } else { | |
3637 | sb.append("\033[48;2;"); | |
3638 | } | |
3639 | sb.append(String.format("%d;%d;%dm", colorRed, colorGreen, colorBlue)); | |
3640 | return sb.toString(); | |
3641 | } | |
3642 | ||
3643 | /** | |
3644 | * Create a T.416 RGB parameter sequence for both foreground and | |
3645 | * background color change. | |
3646 | * | |
3647 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
3648 | * @param backColorRGB a 24-bit RGB value for foreground color | |
3649 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3650 | * e.g. "\033[42m" | |
3651 | */ | |
3652 | private String colorRGB(final int foreColorRGB, final int backColorRGB) { | |
a69ed767 KL |
3653 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
3654 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
3655 | int foreColorBlue = foreColorRGB & 0xFF; | |
3656 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
3657 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
3658 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
3659 | |
3660 | StringBuilder sb = new StringBuilder(); | |
3661 | sb.append(String.format("\033[38;2;%d;%d;%dm", | |
3662 | foreColorRed, foreColorGreen, foreColorBlue)); | |
3663 | sb.append(String.format("\033[48;2;%d;%d;%dm", | |
3664 | backColorRed, backColorGreen, backColorBlue)); | |
3665 | return sb.toString(); | |
3666 | } | |
3667 | ||
15ea4d73 KL |
3668 | /** |
3669 | * Create a T.416 RGB parameter sequence for a single color change. | |
3670 | * | |
3671 | * @param bold if true, set bold | |
3672 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants | |
3673 | * @param foreground if true, this is a foreground color | |
3674 | * @return the string to emit to an xterm terminal with RGB support, | |
3675 | * e.g. "\033[38;2;RR;GG;BBm" | |
3676 | */ | |
3677 | private String rgbColor(final boolean bold, final Color color, | |
3678 | final boolean foreground) { | |
3679 | if (doRgbColor == false) { | |
3680 | return ""; | |
3681 | } | |
3682 | StringBuilder sb = new StringBuilder("\033["); | |
3683 | if (bold) { | |
3684 | // Bold implies foreground only | |
3685 | sb.append("38;2;"); | |
3686 | if (color.equals(Color.BLACK)) { | |
d91ac0f5 | 3687 | sb.append(systemColorRGB(MYBOLD_BLACK)); |
15ea4d73 | 3688 | } else if (color.equals(Color.RED)) { |
d91ac0f5 | 3689 | sb.append(systemColorRGB(MYBOLD_RED)); |
15ea4d73 | 3690 | } else if (color.equals(Color.GREEN)) { |
d91ac0f5 | 3691 | sb.append(systemColorRGB(MYBOLD_GREEN)); |
15ea4d73 | 3692 | } else if (color.equals(Color.YELLOW)) { |
d91ac0f5 | 3693 | sb.append(systemColorRGB(MYBOLD_YELLOW)); |
15ea4d73 | 3694 | } else if (color.equals(Color.BLUE)) { |
d91ac0f5 | 3695 | sb.append(systemColorRGB(MYBOLD_BLUE)); |
15ea4d73 | 3696 | } else if (color.equals(Color.MAGENTA)) { |
d91ac0f5 | 3697 | sb.append(systemColorRGB(MYBOLD_MAGENTA)); |
15ea4d73 | 3698 | } else if (color.equals(Color.CYAN)) { |
d91ac0f5 | 3699 | sb.append(systemColorRGB(MYBOLD_CYAN)); |
15ea4d73 | 3700 | } else if (color.equals(Color.WHITE)) { |
d91ac0f5 | 3701 | sb.append(systemColorRGB(MYBOLD_WHITE)); |
15ea4d73 KL |
3702 | } |
3703 | } else { | |
3704 | if (foreground) { | |
3705 | sb.append("38;2;"); | |
3706 | } else { | |
3707 | sb.append("48;2;"); | |
3708 | } | |
3709 | if (color.equals(Color.BLACK)) { | |
d91ac0f5 | 3710 | sb.append(systemColorRGB(MYBLACK)); |
15ea4d73 | 3711 | } else if (color.equals(Color.RED)) { |
d91ac0f5 | 3712 | sb.append(systemColorRGB(MYRED)); |
15ea4d73 | 3713 | } else if (color.equals(Color.GREEN)) { |
d91ac0f5 | 3714 | sb.append(systemColorRGB(MYGREEN)); |
15ea4d73 | 3715 | } else if (color.equals(Color.YELLOW)) { |
d91ac0f5 | 3716 | sb.append(systemColorRGB(MYYELLOW)); |
15ea4d73 | 3717 | } else if (color.equals(Color.BLUE)) { |
d91ac0f5 | 3718 | sb.append(systemColorRGB(MYBLUE)); |
15ea4d73 | 3719 | } else if (color.equals(Color.MAGENTA)) { |
d91ac0f5 | 3720 | sb.append(systemColorRGB(MYMAGENTA)); |
15ea4d73 | 3721 | } else if (color.equals(Color.CYAN)) { |
d91ac0f5 | 3722 | sb.append(systemColorRGB(MYCYAN)); |
15ea4d73 | 3723 | } else if (color.equals(Color.WHITE)) { |
d91ac0f5 | 3724 | sb.append(systemColorRGB(MYWHITE)); |
15ea4d73 KL |
3725 | } |
3726 | } | |
3727 | sb.append("m"); | |
3728 | return sb.toString(); | |
3729 | } | |
3730 | ||
3731 | /** | |
3732 | * Create a T.416 RGB parameter sequence for both foreground and | |
3733 | * background color change. | |
3734 | * | |
3735 | * @param bold if true, set bold | |
3736 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3737 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3738 | * @return the string to emit to an xterm terminal with RGB support, | |
3739 | * e.g. "\033[38;2;RR;GG;BB;48;2;RR;GG;BBm" | |
3740 | */ | |
3741 | private String rgbColor(final boolean bold, final Color foreColor, | |
3742 | final Color backColor) { | |
3743 | if (doRgbColor == false) { | |
3744 | return ""; | |
3745 | } | |
3746 | ||
3747 | return rgbColor(bold, foreColor, true) + | |
3748 | rgbColor(false, backColor, false); | |
b1589621 KL |
3749 | } |
3750 | ||
3751 | /** | |
3752 | * Create a SGR parameter sequence for a single color change. | |
3753 | * | |
05dbb28d KL |
3754 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
3755 | * @param foreground if true, this is a foreground color | |
3756 | * @param header if true, make the full header, otherwise just emit the | |
3757 | * color parameter e.g. "42;" | |
3758 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3759 | * e.g. "\033[42m" | |
b1589621 | 3760 | */ |
b5f2a6db | 3761 | private String color(final Color color, final boolean foreground, |
7b5261bc KL |
3762 | final boolean header) { |
3763 | ||
3764 | int ecmaColor = color.getValue(); | |
3765 | ||
3766 | // Convert Color.* values to SGR numerics | |
3767 | if (foreground) { | |
3768 | ecmaColor += 30; | |
3769 | } else { | |
3770 | ecmaColor += 40; | |
3771 | } | |
3772 | ||
3773 | if (header) { | |
3774 | return String.format("\033[%dm", ecmaColor); | |
3775 | } else { | |
3776 | return String.format("%d;", ecmaColor); | |
3777 | } | |
b1589621 KL |
3778 | } |
3779 | ||
3780 | /** | |
b5f2a6db | 3781 | * Create a SGR parameter sequence for both foreground and background |
42873e30 | 3782 | * color change. |
b1589621 | 3783 | * |
15ea4d73 | 3784 | * @param bold if true, set bold |
05dbb28d KL |
3785 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3786 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3787 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3788 | * e.g. "\033[31;42m" | |
b1589621 | 3789 | */ |
42873e30 | 3790 | private String color(final boolean bold, final Color foreColor, |
15ea4d73 KL |
3791 | final Color backColor) { |
3792 | return color(foreColor, backColor, true) + | |
3793 | rgbColor(bold, foreColor, backColor); | |
b1589621 KL |
3794 | } |
3795 | ||
3796 | /** | |
3797 | * Create a SGR parameter sequence for both foreground and | |
3798 | * background color change. | |
3799 | * | |
05dbb28d KL |
3800 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3801 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3802 | * @param header if true, make the full header, otherwise just emit the | |
3803 | * color parameter e.g. "31;42;" | |
3804 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3805 | * e.g. "\033[31;42m" | |
b1589621 | 3806 | */ |
b5f2a6db | 3807 | private String color(final Color foreColor, final Color backColor, |
7b5261bc | 3808 | final boolean header) { |
b1589621 | 3809 | |
7b5261bc KL |
3810 | int ecmaForeColor = foreColor.getValue(); |
3811 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 3812 | |
7b5261bc KL |
3813 | // Convert Color.* values to SGR numerics |
3814 | ecmaBackColor += 40; | |
3815 | ecmaForeColor += 30; | |
b1589621 | 3816 | |
7b5261bc KL |
3817 | if (header) { |
3818 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
3819 | } else { | |
3820 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
3821 | } | |
b1589621 KL |
3822 | } |
3823 | ||
3824 | /** | |
3825 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d | 3826 | * several attributes. This sequence first resets all attributes to |
42873e30 | 3827 | * default, then sets attributes as per the parameters. |
b1589621 | 3828 | * |
05dbb28d KL |
3829 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3830 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3831 | * @param bold if true, set bold | |
3832 | * @param reverse if true, set reverse | |
3833 | * @param blink if true, set blink | |
3834 | * @param underline if true, set underline | |
3835 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3836 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 3837 | */ |
42873e30 | 3838 | private String color(final Color foreColor, final Color backColor, |
7b5261bc KL |
3839 | final boolean bold, final boolean reverse, final boolean blink, |
3840 | final boolean underline) { | |
3841 | ||
3842 | int ecmaForeColor = foreColor.getValue(); | |
3843 | int ecmaBackColor = backColor.getValue(); | |
3844 | ||
3845 | // Convert Color.* values to SGR numerics | |
3846 | ecmaBackColor += 40; | |
3847 | ecmaForeColor += 30; | |
3848 | ||
3849 | StringBuilder sb = new StringBuilder(); | |
3850 | if ( bold && reverse && blink && !underline ) { | |
3851 | sb.append("\033[0;1;7;5;"); | |
3852 | } else if ( bold && reverse && !blink && !underline ) { | |
3853 | sb.append("\033[0;1;7;"); | |
3854 | } else if ( !bold && reverse && blink && !underline ) { | |
3855 | sb.append("\033[0;7;5;"); | |
3856 | } else if ( bold && !reverse && blink && !underline ) { | |
3857 | sb.append("\033[0;1;5;"); | |
3858 | } else if ( bold && !reverse && !blink && !underline ) { | |
3859 | sb.append("\033[0;1;"); | |
3860 | } else if ( !bold && reverse && !blink && !underline ) { | |
3861 | sb.append("\033[0;7;"); | |
3862 | } else if ( !bold && !reverse && blink && !underline) { | |
3863 | sb.append("\033[0;5;"); | |
3864 | } else if ( bold && reverse && blink && underline ) { | |
3865 | sb.append("\033[0;1;7;5;4;"); | |
3866 | } else if ( bold && reverse && !blink && underline ) { | |
3867 | sb.append("\033[0;1;7;4;"); | |
3868 | } else if ( !bold && reverse && blink && underline ) { | |
3869 | sb.append("\033[0;7;5;4;"); | |
3870 | } else if ( bold && !reverse && blink && underline ) { | |
3871 | sb.append("\033[0;1;5;4;"); | |
3872 | } else if ( bold && !reverse && !blink && underline ) { | |
3873 | sb.append("\033[0;1;4;"); | |
3874 | } else if ( !bold && reverse && !blink && underline ) { | |
3875 | sb.append("\033[0;7;4;"); | |
3876 | } else if ( !bold && !reverse && blink && underline) { | |
3877 | sb.append("\033[0;5;4;"); | |
3878 | } else if ( !bold && !reverse && !blink && underline) { | |
3879 | sb.append("\033[0;4;"); | |
3880 | } else { | |
3881 | assert (!bold && !reverse && !blink && !underline); | |
3882 | sb.append("\033[0;"); | |
3883 | } | |
3884 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
8a632d71 KL |
3885 | sb.append(rgbColor(bold, foreColor, backColor)); |
3886 | return sb.toString(); | |
051e2913 KL |
3887 | } |
3888 | ||
3889 | /** | |
3890 | * Create a SGR parameter sequence for foreground, background, and | |
3891 | * several attributes. This sequence first resets all attributes to | |
3892 | * default, then sets attributes as per the parameters. | |
3893 | * | |
3894 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
3895 | * @param backColorRGB a 24-bit RGB value for foreground color | |
3896 | * @param bold if true, set bold | |
3897 | * @param reverse if true, set reverse | |
3898 | * @param blink if true, set blink | |
3899 | * @param underline if true, set underline | |
3900 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3901 | * e.g. "\033[0;1;31;42m" | |
3902 | */ | |
3903 | private String colorRGB(final int foreColorRGB, final int backColorRGB, | |
3904 | final boolean bold, final boolean reverse, final boolean blink, | |
3905 | final boolean underline) { | |
3906 | ||
a69ed767 KL |
3907 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
3908 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
3909 | int foreColorBlue = foreColorRGB & 0xFF; | |
3910 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
3911 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
3912 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
3913 | |
3914 | StringBuilder sb = new StringBuilder(); | |
3915 | if ( bold && reverse && blink && !underline ) { | |
3916 | sb.append("\033[0;1;7;5;"); | |
3917 | } else if ( bold && reverse && !blink && !underline ) { | |
3918 | sb.append("\033[0;1;7;"); | |
3919 | } else if ( !bold && reverse && blink && !underline ) { | |
3920 | sb.append("\033[0;7;5;"); | |
3921 | } else if ( bold && !reverse && blink && !underline ) { | |
3922 | sb.append("\033[0;1;5;"); | |
3923 | } else if ( bold && !reverse && !blink && !underline ) { | |
3924 | sb.append("\033[0;1;"); | |
3925 | } else if ( !bold && reverse && !blink && !underline ) { | |
3926 | sb.append("\033[0;7;"); | |
3927 | } else if ( !bold && !reverse && blink && !underline) { | |
3928 | sb.append("\033[0;5;"); | |
3929 | } else if ( bold && reverse && blink && underline ) { | |
3930 | sb.append("\033[0;1;7;5;4;"); | |
3931 | } else if ( bold && reverse && !blink && underline ) { | |
3932 | sb.append("\033[0;1;7;4;"); | |
3933 | } else if ( !bold && reverse && blink && underline ) { | |
3934 | sb.append("\033[0;7;5;4;"); | |
3935 | } else if ( bold && !reverse && blink && underline ) { | |
3936 | sb.append("\033[0;1;5;4;"); | |
3937 | } else if ( bold && !reverse && !blink && underline ) { | |
3938 | sb.append("\033[0;1;4;"); | |
3939 | } else if ( !bold && reverse && !blink && underline ) { | |
3940 | sb.append("\033[0;7;4;"); | |
3941 | } else if ( !bold && !reverse && blink && underline) { | |
3942 | sb.append("\033[0;5;4;"); | |
3943 | } else if ( !bold && !reverse && !blink && underline) { | |
3944 | sb.append("\033[0;4;"); | |
3945 | } else { | |
3946 | assert (!bold && !reverse && !blink && !underline); | |
3947 | sb.append("\033[0;"); | |
3948 | } | |
3949 | ||
3950 | sb.append("m\033[38;2;"); | |
3951 | sb.append(String.format("%d;%d;%d", foreColorRed, foreColorGreen, | |
3952 | foreColorBlue)); | |
3953 | sb.append("m\033[48;2;"); | |
3954 | sb.append(String.format("%d;%d;%d", backColorRed, backColorGreen, | |
3955 | backColorBlue)); | |
3956 | sb.append("m"); | |
3957 | return sb.toString(); | |
b1589621 KL |
3958 | } |
3959 | ||
b1589621 | 3960 | /** |
842be156 | 3961 | * Create a SGR parameter sequence to reset to VT100 defaults. |
b1589621 | 3962 | * |
05dbb28d KL |
3963 | * @return the string to emit to an ANSI / ECMA-style terminal, |
3964 | * e.g. "\033[0m" | |
b1589621 | 3965 | */ |
42873e30 | 3966 | private String normal() { |
8a632d71 | 3967 | return normal(true) + rgbColor(false, Color.WHITE, Color.BLACK); |
b1589621 KL |
3968 | } |
3969 | ||
842be156 KL |
3970 | /** |
3971 | * Create a SGR parameter sequence to reset to ECMA-48 default | |
3972 | * foreground/background. | |
3973 | * | |
3974 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3975 | * e.g. "\033[0m" | |
3976 | */ | |
3977 | private String defaultColor() { | |
3978 | /* | |
3979 | * VT100 normal. | |
3980 | * Normal (neither bold nor faint). | |
3981 | * Not italicized. | |
3982 | * Not underlined. | |
3983 | * Steady (not blinking). | |
3984 | * Positive (not inverse). | |
3985 | * Visible (not hidden). | |
3986 | * Not crossed-out. | |
3987 | * Default foreground color. | |
3988 | * Default background color. | |
3989 | */ | |
3990 | return "\033[0;22;23;24;25;27;28;29;39;49m"; | |
3991 | } | |
3992 | ||
b1589621 KL |
3993 | /** |
3994 | * Create a SGR parameter sequence to reset to defaults. | |
3995 | * | |
05dbb28d KL |
3996 | * @param header if true, make the full header, otherwise just emit the |
3997 | * bare parameter e.g. "0;" | |
3998 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3999 | * e.g. "\033[0m" | |
b1589621 | 4000 | */ |
b5f2a6db | 4001 | private String normal(final boolean header) { |
7b5261bc KL |
4002 | if (header) { |
4003 | return "\033[0;37;40m"; | |
4004 | } | |
4005 | return "0;37;40"; | |
b1589621 KL |
4006 | } |
4007 | ||
b1589621 | 4008 | /** |
42873e30 | 4009 | * Create a SGR parameter sequence for enabling the visible cursor. |
b1589621 | 4010 | * |
05dbb28d KL |
4011 | * @param on if true, turn on cursor |
4012 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 4013 | */ |
42873e30 | 4014 | private String cursor(final boolean on) { |
7b5261bc KL |
4015 | if (on && !cursorOn) { |
4016 | cursorOn = true; | |
4017 | return "\033[?25h"; | |
4018 | } | |
4019 | if (!on && cursorOn) { | |
4020 | cursorOn = false; | |
4021 | return "\033[?25l"; | |
4022 | } | |
4023 | return ""; | |
b1589621 KL |
4024 | } |
4025 | ||
4026 | /** | |
4027 | * Clear the entire screen. Because some terminals use back-color-erase, | |
4028 | * set the color to white-on-black beforehand. | |
4029 | * | |
05dbb28d | 4030 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 4031 | */ |
42873e30 | 4032 | private String clearAll() { |
7b5261bc | 4033 | return "\033[0;37;40m\033[2J"; |
b1589621 KL |
4034 | } |
4035 | ||
4036 | /** | |
4037 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
4038 | * Because some terminals use back-color-erase, set the color to | |
42873e30 | 4039 | * white-on-black beforehand. |
b1589621 | 4040 | * |
05dbb28d | 4041 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 4042 | */ |
42873e30 | 4043 | private String clearRemainingLine() { |
7b5261bc | 4044 | return "\033[0;37;40m\033[K"; |
b1589621 KL |
4045 | } |
4046 | ||
b1589621 | 4047 | /** |
42873e30 | 4048 | * Move the cursor to (x, y). |
b1589621 | 4049 | * |
05dbb28d KL |
4050 | * @param x column coordinate. 0 is the left-most column. |
4051 | * @param y row coordinate. 0 is the top-most row. | |
4052 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 4053 | */ |
42873e30 | 4054 | private String gotoXY(final int x, final int y) { |
7b5261bc | 4055 | return String.format("\033[%d;%dH", y + 1, x + 1); |
b1589621 KL |
4056 | } |
4057 | ||
4058 | /** | |
05dbb28d | 4059 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
b5f2a6db KL |
4060 | * tracking", UTF-8 coordinates, and then SGR coordinates. Ideally we |
4061 | * will end up with SGR coordinates with UTF-8 coordinates as a fallback. | |
4062 | * See | |
b1589621 KL |
4063 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
4064 | * | |
05dbb28d | 4065 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 4066 | * |
978a5d8f KL |
4067 | * Finally, also emit a Privacy Message sequence that Jexer recognizes to |
4068 | * mean "hide the mouse pointer." We have to use our own sequence to do | |
4069 | * this because there is no standard in xterm for unilaterally hiding the | |
4070 | * pointer all the time (regardless of typing). | |
4071 | * | |
05dbb28d KL |
4072 | * @param on If true, enable mouse report and use the alternate screen |
4073 | * buffer. If false disable mouse reporting and use the primary screen | |
4074 | * buffer. | |
4075 | * @return the string to emit to xterm | |
b1589621 | 4076 | */ |
b5f2a6db | 4077 | private String mouse(final boolean on) { |
7b5261bc | 4078 | if (on) { |
978a5d8f | 4079 | return "\033[?1002;1003;1005;1006h\033[?1049h\033^hideMousePointer\033\\"; |
7b5261bc | 4080 | } |
978a5d8f | 4081 | return "\033[?1002;1003;1006;1005l\033[?1049l\033^showMousePointer\033\\"; |
b1589621 KL |
4082 | } |
4083 | ||
4084 | } |