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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 | |
7ed28054 KL |
31 | import java.awt.Graphics; |
32 | import java.awt.Graphics2D; | |
33 | import java.awt.RenderingHints; | |
a69ed767 | 34 | import java.awt.image.BufferedImage; |
b1589621 | 35 | import java.io.BufferedReader; |
9544763d | 36 | import java.io.ByteArrayOutputStream; |
4328bb42 KL |
37 | import java.io.FileDescriptor; |
38 | import java.io.FileInputStream; | |
b1589621 KL |
39 | import java.io.InputStream; |
40 | import java.io.InputStreamReader; | |
41 | import java.io.IOException; | |
42 | import java.io.OutputStream; | |
43 | import java.io.OutputStreamWriter; | |
44 | import java.io.PrintWriter; | |
45 | import java.io.Reader; | |
46 | import java.io.UnsupportedEncodingException; | |
47 | import java.util.ArrayList; | |
a69ed767 KL |
48 | import java.util.Collections; |
49 | import java.util.HashMap; | |
b1589621 | 50 | import java.util.List; |
9544763d | 51 | import javax.imageio.ImageIO; |
b1589621 | 52 | |
a69ed767 | 53 | import jexer.TImage; |
42873e30 KL |
54 | import jexer.bits.Cell; |
55 | import jexer.bits.CellAttributes; | |
b1589621 | 56 | import jexer.bits.Color; |
34bb6e52 | 57 | import jexer.bits.StringUtils; |
abb84744 | 58 | import jexer.event.TCommandEvent; |
b1589621 KL |
59 | import jexer.event.TInputEvent; |
60 | import jexer.event.TKeypressEvent; | |
61 | import jexer.event.TMouseEvent; | |
62 | import jexer.event.TResizeEvent; | |
abb84744 | 63 | import static jexer.TCommand.*; |
b1589621 KL |
64 | import static jexer.TKeypress.*; |
65 | ||
66 | /** | |
7b5261bc KL |
67 | * This class reads keystrokes and mouse events and emits output to ANSI |
68 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 69 | */ |
051e2913 KL |
70 | public class ECMA48Terminal extends LogicalScreen |
71 | implements TerminalReader, Runnable { | |
42873e30 | 72 | |
d36057df KL |
73 | // ------------------------------------------------------------------------ |
74 | // Constants -------------------------------------------------------------- | |
75 | // ------------------------------------------------------------------------ | |
76 | ||
77 | /** | |
78 | * States in the input parser. | |
79 | */ | |
80 | private enum ParseState { | |
81 | GROUND, | |
82 | ESCAPE, | |
83 | ESCAPE_INTERMEDIATE, | |
84 | CSI_ENTRY, | |
85 | CSI_PARAM, | |
86 | MOUSE, | |
87 | MOUSE_SGR, | |
88 | } | |
89 | ||
83787cfb KL |
90 | /** |
91 | * Available Jexer images support. | |
92 | */ | |
93 | private enum JexerImageOption { | |
94 | DISABLED, | |
95 | JPG, | |
96 | PNG, | |
97 | RGB, | |
98 | } | |
99 | ||
d36057df KL |
100 | // ------------------------------------------------------------------------ |
101 | // Variables -------------------------------------------------------------- | |
102 | // ------------------------------------------------------------------------ | |
103 | ||
42873e30 KL |
104 | /** |
105 | * Emit debugging to stderr. | |
106 | */ | |
107 | private boolean debugToStderr = false; | |
b1589621 | 108 | |
15ea4d73 | 109 | /** |
051e2913 KL |
110 | * If true, emit T.416-style RGB colors for normal system colors. This |
111 | * is a) expensive in bandwidth, and b) potentially terrible looking for | |
112 | * non-xterms. | |
15ea4d73 KL |
113 | */ |
114 | private static boolean doRgbColor = false; | |
115 | ||
b1589621 | 116 | /** |
7b5261bc KL |
117 | * The session information. |
118 | */ | |
119 | private SessionInfo sessionInfo; | |
120 | ||
4328bb42 | 121 | /** |
7b5261bc | 122 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
123 | */ |
124 | private List<TInputEvent> eventQueue; | |
125 | ||
126 | /** | |
127 | * If true, we want the reader thread to exit gracefully. | |
128 | */ | |
129 | private boolean stopReaderThread; | |
130 | ||
131 | /** | |
7b5261bc | 132 | * The reader thread. |
4328bb42 KL |
133 | */ |
134 | private Thread readerThread; | |
135 | ||
b1589621 KL |
136 | /** |
137 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
138 | * params[0] will be 1 and params[1] will be 3. | |
139 | */ | |
d36057df | 140 | private List<String> params; |
b1589621 KL |
141 | |
142 | /** | |
7b5261bc | 143 | * Current parsing state. |
b1589621 KL |
144 | */ |
145 | private ParseState state; | |
146 | ||
147 | /** | |
7b5261bc KL |
148 | * The time we entered ESCAPE. If we get a bare escape without a code |
149 | * following it, this is used to return that bare escape. | |
b1589621 KL |
150 | */ |
151 | private long escapeTime; | |
152 | ||
a83fea2b KL |
153 | /** |
154 | * The time we last checked the window size. We try not to spawn stty | |
155 | * more than once per second. | |
156 | */ | |
157 | private long windowSizeTime; | |
158 | ||
b1589621 KL |
159 | /** |
160 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
161 | */ | |
162 | private boolean mouse1; | |
163 | ||
164 | /** | |
165 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
166 | */ | |
167 | private boolean mouse2; | |
168 | ||
169 | /** | |
170 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
171 | */ | |
172 | private boolean mouse3; | |
173 | ||
174 | /** | |
175 | * Cache the cursor visibility value so we only emit the sequence when we | |
176 | * need to. | |
177 | */ | |
178 | private boolean cursorOn = true; | |
179 | ||
180 | /** | |
181 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
182 | * generated. | |
183 | */ | |
184 | private TResizeEvent windowResize = null; | |
185 | ||
772b8255 KL |
186 | /** |
187 | * If true, emit wide-char (CJK/Emoji) characters as sixel images. | |
188 | */ | |
189 | private boolean wideCharImages = true; | |
190 | ||
a69ed767 KL |
191 | /** |
192 | * Window width in pixels. Used for sixel support. | |
193 | */ | |
194 | private int widthPixels = 640; | |
195 | ||
196 | /** | |
197 | * Window height in pixels. Used for sixel support. | |
198 | */ | |
199 | private int heightPixels = 400; | |
200 | ||
201 | /** | |
202 | * If true, emit image data via sixel. | |
203 | */ | |
204 | private boolean sixel = true; | |
205 | ||
1db1bc02 KL |
206 | /** |
207 | * If true, use a single shared palette for sixel. | |
208 | */ | |
209 | private boolean sixelSharedPalette = true; | |
210 | ||
a69ed767 KL |
211 | /** |
212 | * The sixel palette handler. | |
213 | */ | |
214 | private SixelPalette palette = null; | |
215 | ||
216 | /** | |
217 | * The sixel post-rendered string cache. | |
218 | */ | |
9544763d | 219 | private ImageCache sixelCache = null; |
a69ed767 | 220 | |
a75902fa KL |
221 | /** |
222 | * Number of colors in the sixel palette. Xterm 335 defines the max as | |
223 | * 1024. Valid values are: 2 (black and white), 256, 512, 1024, and | |
224 | * 2048. | |
225 | */ | |
226 | private int sixelPaletteSize = 1024; | |
227 | ||
9544763d KL |
228 | /** |
229 | * If true, emit image data via iTerm2 image protocol. | |
230 | */ | |
231 | private boolean iterm2Images = false; | |
232 | ||
233 | /** | |
234 | * The iTerm2 post-rendered string cache. | |
235 | */ | |
236 | private ImageCache iterm2Cache = null; | |
237 | ||
238 | /** | |
83787cfb KL |
239 | * If not DISABLED, emit image data via Jexer image protocol if the |
240 | * terminal supports it. | |
686d4da2 | 241 | */ |
83787cfb | 242 | private JexerImageOption jexerImageOption = JexerImageOption.JPG; |
686d4da2 KL |
243 | |
244 | /** | |
245 | * The Jexer post-rendered string cache. | |
246 | */ | |
247 | private ImageCache jexerCache = null; | |
248 | ||
b1589621 KL |
249 | /** |
250 | * If true, then we changed System.in and need to change it back. | |
251 | */ | |
9544763d | 252 | private boolean setRawMode = false; |
b1589621 | 253 | |
686d4da2 KL |
254 | /** |
255 | * If true, '?' was seen in terminal response. | |
256 | */ | |
257 | private boolean decPrivateModeFlag = false; | |
258 | ||
b1589621 KL |
259 | /** |
260 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
261 | * constructor, then this InputStreamReader will be bound to System.in |
262 | * with UTF-8 encoding. | |
b1589621 KL |
263 | */ |
264 | private Reader input; | |
265 | ||
4328bb42 KL |
266 | /** |
267 | * The terminal's raw InputStream. If an InputStream is not specified in | |
268 | * the constructor, then this InputReader will be bound to System.in. | |
269 | * This is used by run() to see if bytes are available() before calling | |
270 | * (Reader)input.read(). | |
271 | */ | |
272 | private InputStream inputStream; | |
273 | ||
b1589621 KL |
274 | /** |
275 | * The terminal's output. If an OutputStream is not specified in the | |
276 | * constructor, then this PrintWriter will be bound to System.out with | |
277 | * UTF-8 encoding. | |
278 | */ | |
279 | private PrintWriter output; | |
280 | ||
92554d64 KL |
281 | /** |
282 | * The listening object that run() wakes up on new input. | |
283 | */ | |
284 | private Object listener; | |
285 | ||
d91ac0f5 KL |
286 | // Colors to map DOS colors to AWT colors. |
287 | private static java.awt.Color MYBLACK; | |
288 | private static java.awt.Color MYRED; | |
289 | private static java.awt.Color MYGREEN; | |
290 | private static java.awt.Color MYYELLOW; | |
291 | private static java.awt.Color MYBLUE; | |
292 | private static java.awt.Color MYMAGENTA; | |
293 | private static java.awt.Color MYCYAN; | |
294 | private static java.awt.Color MYWHITE; | |
295 | private static java.awt.Color MYBOLD_BLACK; | |
296 | private static java.awt.Color MYBOLD_RED; | |
297 | private static java.awt.Color MYBOLD_GREEN; | |
298 | private static java.awt.Color MYBOLD_YELLOW; | |
299 | private static java.awt.Color MYBOLD_BLUE; | |
300 | private static java.awt.Color MYBOLD_MAGENTA; | |
301 | private static java.awt.Color MYBOLD_CYAN; | |
302 | private static java.awt.Color MYBOLD_WHITE; | |
303 | ||
a69ed767 KL |
304 | /** |
305 | * SixelPalette is used to manage the conversion of images between 24-bit | |
a75902fa | 306 | * RGB color and a palette of sixelPaletteSize colors. |
a69ed767 KL |
307 | */ |
308 | private class SixelPalette { | |
309 | ||
310 | /** | |
311 | * Color palette for sixel output, sorted low to high. | |
312 | */ | |
313 | private List<Integer> rgbColors = new ArrayList<Integer>(); | |
314 | ||
315 | /** | |
316 | * Map of color palette index for sixel output, from the order it was | |
317 | * generated by makePalette() to rgbColors. | |
318 | */ | |
a75902fa | 319 | private int [] rgbSortedIndex = new int[sixelPaletteSize]; |
a69ed767 KL |
320 | |
321 | /** | |
322 | * The color palette, organized by hue, saturation, and luminance. | |
323 | * This is used for a fast color match. | |
324 | */ | |
325 | private ArrayList<ArrayList<ArrayList<ColorIdx>>> hslColors; | |
326 | ||
327 | /** | |
328 | * Number of bits for hue. | |
329 | */ | |
330 | private int hueBits = -1; | |
331 | ||
332 | /** | |
333 | * Number of bits for saturation. | |
334 | */ | |
335 | private int satBits = -1; | |
336 | ||
337 | /** | |
338 | * Number of bits for luminance. | |
339 | */ | |
340 | private int lumBits = -1; | |
341 | ||
342 | /** | |
343 | * Step size for hue bins. | |
344 | */ | |
345 | private int hueStep = -1; | |
346 | ||
347 | /** | |
348 | * Step size for saturation bins. | |
349 | */ | |
350 | private int satStep = -1; | |
351 | ||
352 | /** | |
353 | * Cached RGB to HSL result. | |
354 | */ | |
355 | private int hsl[] = new int[3]; | |
356 | ||
357 | /** | |
358 | * ColorIdx records a RGB color and its palette index. | |
359 | */ | |
360 | private class ColorIdx { | |
361 | /** | |
362 | * The 24-bit RGB color. | |
363 | */ | |
364 | public int color; | |
365 | ||
366 | /** | |
367 | * The palette index for this color. | |
368 | */ | |
369 | public int index; | |
370 | ||
371 | /** | |
372 | * Public constructor. | |
373 | * | |
374 | * @param color the 24-bit RGB color | |
375 | * @param index the palette index for this color | |
376 | */ | |
377 | public ColorIdx(final int color, final int index) { | |
378 | this.color = color; | |
379 | this.index = index; | |
380 | } | |
381 | } | |
382 | ||
383 | /** | |
384 | * Public constructor. | |
385 | */ | |
386 | public SixelPalette() { | |
387 | makePalette(); | |
388 | } | |
389 | ||
390 | /** | |
391 | * Find the nearest match for a color in the palette. | |
392 | * | |
393 | * @param color the RGB color | |
394 | * @return the index in rgbColors that is closest to color | |
395 | */ | |
396 | public int matchColor(final int color) { | |
397 | ||
398 | assert (color >= 0); | |
399 | ||
400 | /* | |
401 | * matchColor() is a critical performance bottleneck. To make it | |
402 | * decent, we do the following: | |
403 | * | |
404 | * 1. Find the nearest two hues that bracket this color. | |
405 | * | |
406 | * 2. Find the nearest two saturations that bracket this color. | |
407 | * | |
408 | * 3. Iterate within these four bands of luminance values, | |
409 | * returning the closest color by Euclidean distance. | |
410 | * | |
411 | * This strategy reduces the search space by about 97%. | |
412 | */ | |
413 | int red = (color >>> 16) & 0xFF; | |
414 | int green = (color >>> 8) & 0xFF; | |
415 | int blue = color & 0xFF; | |
416 | ||
a75902fa | 417 | if (sixelPaletteSize == 2) { |
f5b7a696 KL |
418 | if (((red * red) + (green * green) + (blue * blue)) < 35568) { |
419 | // Black | |
420 | return 0; | |
421 | } | |
422 | // White | |
423 | return 1; | |
424 | } | |
425 | ||
426 | ||
a69ed767 KL |
427 | rgbToHsl(red, green, blue, hsl); |
428 | int hue = hsl[0]; | |
429 | int sat = hsl[1]; | |
430 | int lum = hsl[2]; | |
431 | // System.err.printf("%d %d %d\n", hue, sat, lum); | |
432 | ||
433 | double diff = Double.MAX_VALUE; | |
434 | int idx = -1; | |
435 | ||
436 | int hue1 = hue / (360/hueStep); | |
437 | int hue2 = hue1 + 1; | |
438 | if (hue1 >= hslColors.size() - 1) { | |
439 | // Bracket pure red from above. | |
440 | hue1 = hslColors.size() - 1; | |
441 | hue2 = 0; | |
442 | } else if (hue1 == 0) { | |
443 | // Bracket pure red from below. | |
444 | hue2 = hslColors.size() - 1; | |
445 | } | |
446 | ||
447 | for (int hI = hue1; hI != -1;) { | |
448 | ArrayList<ArrayList<ColorIdx>> sats = hslColors.get(hI); | |
449 | if (hI == hue1) { | |
450 | hI = hue2; | |
451 | } else if (hI == hue2) { | |
452 | hI = -1; | |
453 | } | |
454 | ||
455 | int sMin = (sat / satStep) - 1; | |
456 | int sMax = sMin + 1; | |
457 | if (sMin < 0) { | |
458 | sMin = 0; | |
459 | sMax = 1; | |
460 | } else if (sMin == sats.size() - 1) { | |
461 | sMax = sMin; | |
462 | sMin--; | |
463 | } | |
464 | assert (sMin >= 0); | |
465 | assert (sMax - sMin == 1); | |
466 | ||
467 | // int sMin = 0; | |
468 | // int sMax = sats.size() - 1; | |
469 | ||
470 | for (int sI = sMin; sI <= sMax; sI++) { | |
471 | ArrayList<ColorIdx> lums = sats.get(sI); | |
472 | ||
473 | // True 3D colorspace match for the remaining values | |
474 | for (ColorIdx c: lums) { | |
475 | int rgbColor = c.color; | |
476 | double newDiff = 0; | |
477 | int red2 = (rgbColor >>> 16) & 0xFF; | |
478 | int green2 = (rgbColor >>> 8) & 0xFF; | |
479 | int blue2 = rgbColor & 0xFF; | |
480 | newDiff += Math.pow(red2 - red, 2); | |
481 | newDiff += Math.pow(green2 - green, 2); | |
482 | newDiff += Math.pow(blue2 - blue, 2); | |
483 | if (newDiff < diff) { | |
484 | idx = rgbSortedIndex[c.index]; | |
485 | diff = newDiff; | |
486 | } | |
487 | } | |
488 | } | |
489 | } | |
490 | ||
491 | if (((red * red) + (green * green) + (blue * blue)) < diff) { | |
492 | // Black is a closer match. | |
493 | idx = 0; | |
494 | } else if ((((255 - red) * (255 - red)) + | |
495 | ((255 - green) * (255 - green)) + | |
496 | ((255 - blue) * (255 - blue))) < diff) { | |
497 | ||
498 | // White is a closer match. | |
a75902fa | 499 | idx = sixelPaletteSize - 1; |
a69ed767 KL |
500 | } |
501 | assert (idx != -1); | |
502 | return idx; | |
503 | } | |
504 | ||
505 | /** | |
506 | * Clamp an int value to [0, 255]. | |
507 | * | |
508 | * @param x the int value | |
509 | * @return an int between 0 and 255. | |
510 | */ | |
511 | private int clamp(final int x) { | |
512 | if (x < 0) { | |
513 | return 0; | |
514 | } | |
515 | if (x > 255) { | |
516 | return 255; | |
517 | } | |
518 | return x; | |
519 | } | |
520 | ||
521 | /** | |
a75902fa | 522 | * Dither an image to a sixelPaletteSize palette. The dithered |
a69ed767 KL |
523 | * image cells will contain indexes into the palette. |
524 | * | |
525 | * @param image the image to dither | |
526 | * @return the dithered image. Every pixel is an index into the | |
527 | * palette. | |
528 | */ | |
529 | public BufferedImage ditherImage(final BufferedImage image) { | |
530 | ||
531 | BufferedImage ditheredImage = new BufferedImage(image.getWidth(), | |
532 | image.getHeight(), BufferedImage.TYPE_INT_ARGB); | |
533 | ||
534 | int [] rgbArray = image.getRGB(0, 0, image.getWidth(), | |
535 | image.getHeight(), null, 0, image.getWidth()); | |
536 | ditheredImage.setRGB(0, 0, image.getWidth(), image.getHeight(), | |
537 | rgbArray, 0, image.getWidth()); | |
538 | ||
539 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
540 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
541 | int oldPixel = ditheredImage.getRGB(imageX, | |
542 | imageY) & 0xFFFFFF; | |
543 | int colorIdx = matchColor(oldPixel); | |
544 | assert (colorIdx >= 0); | |
a75902fa | 545 | assert (colorIdx < sixelPaletteSize); |
a69ed767 KL |
546 | int newPixel = rgbColors.get(colorIdx); |
547 | ditheredImage.setRGB(imageX, imageY, colorIdx); | |
548 | ||
549 | int oldRed = (oldPixel >>> 16) & 0xFF; | |
550 | int oldGreen = (oldPixel >>> 8) & 0xFF; | |
551 | int oldBlue = oldPixel & 0xFF; | |
552 | ||
553 | int newRed = (newPixel >>> 16) & 0xFF; | |
554 | int newGreen = (newPixel >>> 8) & 0xFF; | |
555 | int newBlue = newPixel & 0xFF; | |
556 | ||
557 | int redError = (oldRed - newRed) / 16; | |
558 | int greenError = (oldGreen - newGreen) / 16; | |
559 | int blueError = (oldBlue - newBlue) / 16; | |
560 | ||
561 | int red, green, blue; | |
562 | if (imageX < image.getWidth() - 1) { | |
563 | int pXpY = ditheredImage.getRGB(imageX + 1, imageY); | |
9696a8f6 KL |
564 | red = ((pXpY >>> 16) & 0xFF) + (7 * redError); |
565 | green = ((pXpY >>> 8) & 0xFF) + (7 * greenError); | |
566 | blue = ( pXpY & 0xFF) + (7 * blueError); | |
a69ed767 KL |
567 | red = clamp(red); |
568 | green = clamp(green); | |
569 | blue = clamp(blue); | |
570 | pXpY = ((red & 0xFF) << 16); | |
571 | pXpY |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
572 | ditheredImage.setRGB(imageX + 1, imageY, pXpY); | |
573 | ||
574 | if (imageY < image.getHeight() - 1) { | |
575 | int pXpYp = ditheredImage.getRGB(imageX + 1, | |
576 | imageY + 1); | |
9696a8f6 KL |
577 | red = ((pXpYp >>> 16) & 0xFF) + redError; |
578 | green = ((pXpYp >>> 8) & 0xFF) + greenError; | |
579 | blue = ( pXpYp & 0xFF) + blueError; | |
a69ed767 KL |
580 | red = clamp(red); |
581 | green = clamp(green); | |
582 | blue = clamp(blue); | |
583 | pXpYp = ((red & 0xFF) << 16); | |
584 | pXpYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
585 | ditheredImage.setRGB(imageX + 1, imageY + 1, pXpYp); | |
586 | } | |
587 | } else if (imageY < image.getHeight() - 1) { | |
588 | int pXmYp = ditheredImage.getRGB(imageX - 1, | |
589 | imageY + 1); | |
590 | int pXYp = ditheredImage.getRGB(imageX, | |
591 | imageY + 1); | |
592 | ||
9696a8f6 KL |
593 | red = ((pXmYp >>> 16) & 0xFF) + (3 * redError); |
594 | green = ((pXmYp >>> 8) & 0xFF) + (3 * greenError); | |
595 | blue = ( pXmYp & 0xFF) + (3 * blueError); | |
a69ed767 KL |
596 | red = clamp(red); |
597 | green = clamp(green); | |
598 | blue = clamp(blue); | |
599 | pXmYp = ((red & 0xFF) << 16); | |
600 | pXmYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
601 | ditheredImage.setRGB(imageX - 1, imageY + 1, pXmYp); | |
602 | ||
9696a8f6 KL |
603 | red = ((pXYp >>> 16) & 0xFF) + (5 * redError); |
604 | green = ((pXYp >>> 8) & 0xFF) + (5 * greenError); | |
605 | blue = ( pXYp & 0xFF) + (5 * blueError); | |
a69ed767 KL |
606 | red = clamp(red); |
607 | green = clamp(green); | |
608 | blue = clamp(blue); | |
609 | pXYp = ((red & 0xFF) << 16); | |
610 | pXYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
611 | ditheredImage.setRGB(imageX, imageY + 1, pXYp); | |
612 | } | |
613 | } // for (int imageY = 0; imageY < image.getHeight(); imageY++) | |
614 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) | |
615 | ||
616 | return ditheredImage; | |
617 | } | |
618 | ||
619 | /** | |
620 | * Convert an RGB color to HSL. | |
621 | * | |
622 | * @param red red color, between 0 and 255 | |
623 | * @param green green color, between 0 and 255 | |
624 | * @param blue blue color, between 0 and 255 | |
625 | * @param hsl the hsl color as [hue, saturation, luminance] | |
626 | */ | |
627 | private void rgbToHsl(final int red, final int green, | |
628 | final int blue, final int [] hsl) { | |
629 | ||
630 | assert ((red >= 0) && (red <= 255)); | |
631 | assert ((green >= 0) && (green <= 255)); | |
632 | assert ((blue >= 0) && (blue <= 255)); | |
633 | ||
634 | double R = red / 255.0; | |
635 | double G = green / 255.0; | |
636 | double B = blue / 255.0; | |
637 | boolean Rmax = false; | |
638 | boolean Gmax = false; | |
639 | boolean Bmax = false; | |
640 | double min = (R < G ? R : G); | |
641 | min = (min < B ? min : B); | |
642 | double max = 0; | |
643 | if ((R >= G) && (R >= B)) { | |
644 | max = R; | |
645 | Rmax = true; | |
646 | } else if ((G >= R) && (G >= B)) { | |
647 | max = G; | |
648 | Gmax = true; | |
649 | } else if ((B >= G) && (B >= R)) { | |
650 | max = B; | |
651 | Bmax = true; | |
652 | } | |
653 | ||
654 | double L = (min + max) / 2.0; | |
655 | double H = 0.0; | |
656 | double S = 0.0; | |
657 | if (min != max) { | |
658 | if (L < 0.5) { | |
659 | S = (max - min) / (max + min); | |
660 | } else { | |
661 | S = (max - min) / (2.0 - max - min); | |
662 | } | |
663 | } | |
664 | if (Rmax) { | |
665 | assert (Gmax == false); | |
666 | assert (Bmax == false); | |
667 | H = (G - B) / (max - min); | |
668 | } else if (Gmax) { | |
669 | assert (Rmax == false); | |
670 | assert (Bmax == false); | |
671 | H = 2.0 + (B - R) / (max - min); | |
672 | } else if (Bmax) { | |
673 | assert (Rmax == false); | |
674 | assert (Gmax == false); | |
675 | H = 4.0 + (R - G) / (max - min); | |
676 | } | |
677 | if (H < 0.0) { | |
678 | H += 6.0; | |
679 | } | |
680 | hsl[0] = (int) (H * 60.0); | |
681 | hsl[1] = (int) (S * 100.0); | |
682 | hsl[2] = (int) (L * 100.0); | |
683 | ||
684 | assert ((hsl[0] >= 0) && (hsl[0] <= 360)); | |
685 | assert ((hsl[1] >= 0) && (hsl[1] <= 100)); | |
686 | assert ((hsl[2] >= 0) && (hsl[2] <= 100)); | |
687 | } | |
688 | ||
689 | /** | |
690 | * Convert a HSL color to RGB. | |
691 | * | |
692 | * @param hue hue, between 0 and 359 | |
693 | * @param sat saturation, between 0 and 100 | |
694 | * @param lum luminance, between 0 and 100 | |
695 | * @return the rgb color as 0x00RRGGBB | |
696 | */ | |
697 | private int hslToRgb(final int hue, final int sat, final int lum) { | |
698 | assert ((hue >= 0) && (hue <= 360)); | |
699 | assert ((sat >= 0) && (sat <= 100)); | |
700 | assert ((lum >= 0) && (lum <= 100)); | |
701 | ||
702 | double S = sat / 100.0; | |
703 | double L = lum / 100.0; | |
704 | double C = (1.0 - Math.abs((2.0 * L) - 1.0)) * S; | |
705 | double Hp = hue / 60.0; | |
706 | double X = C * (1.0 - Math.abs((Hp % 2) - 1.0)); | |
707 | double Rp = 0.0; | |
708 | double Gp = 0.0; | |
709 | double Bp = 0.0; | |
710 | if (Hp <= 1.0) { | |
711 | Rp = C; | |
712 | Gp = X; | |
713 | } else if (Hp <= 2.0) { | |
714 | Rp = X; | |
715 | Gp = C; | |
716 | } else if (Hp <= 3.0) { | |
717 | Gp = C; | |
718 | Bp = X; | |
719 | } else if (Hp <= 4.0) { | |
720 | Gp = X; | |
721 | Bp = C; | |
722 | } else if (Hp <= 5.0) { | |
723 | Rp = X; | |
724 | Bp = C; | |
725 | } else if (Hp <= 6.0) { | |
726 | Rp = C; | |
727 | Bp = X; | |
728 | } | |
729 | double m = L - (C / 2.0); | |
730 | int red = ((int) ((Rp + m) * 255.0)) << 16; | |
731 | int green = ((int) ((Gp + m) * 255.0)) << 8; | |
732 | int blue = (int) ((Bp + m) * 255.0); | |
733 | ||
734 | return (red | green | blue); | |
735 | } | |
736 | ||
737 | /** | |
738 | * Create the sixel palette. | |
739 | */ | |
740 | private void makePalette() { | |
741 | // Generate the sixel palette. Because we have no idea at this | |
742 | // layer which image(s) will be shown, we have to use a common | |
a75902fa | 743 | // palette with sixelPaletteSize colors for everything, and |
a69ed767 KL |
744 | // map the BufferedImage colors to their nearest neighbor in RGB |
745 | // space. | |
746 | ||
a75902fa | 747 | if (sixelPaletteSize == 2) { |
f5b7a696 KL |
748 | rgbColors.add(0); |
749 | rgbColors.add(0xFFFFFF); | |
750 | rgbSortedIndex[0] = 0; | |
751 | rgbSortedIndex[1] = 1; | |
752 | return; | |
753 | } | |
754 | ||
a69ed767 KL |
755 | // We build a palette using the Hue-Saturation-Luminence model, |
756 | // with 5+ bits for Hue, 2+ bits for Saturation, and 1+ bit for | |
757 | // Luminance. We convert these colors to 24-bit RGB, sort them | |
758 | // ascending, and steal the first index for pure black and the | |
759 | // last for pure white. The 8-bit final palette favors bright | |
760 | // colors, somewhere between pastel and classic television | |
761 | // technicolor. 9- and 10-bit palettes are more uniform. | |
762 | ||
763 | // Default at 256 colors. | |
764 | hueBits = 5; | |
765 | satBits = 2; | |
766 | lumBits = 1; | |
767 | ||
a75902fa KL |
768 | assert (sixelPaletteSize >= 256); |
769 | assert ((sixelPaletteSize == 256) | |
770 | || (sixelPaletteSize == 512) | |
771 | || (sixelPaletteSize == 1024) | |
772 | || (sixelPaletteSize == 2048)); | |
a69ed767 | 773 | |
a75902fa | 774 | switch (sixelPaletteSize) { |
a69ed767 KL |
775 | case 512: |
776 | hueBits = 5; | |
777 | satBits = 2; | |
778 | lumBits = 2; | |
779 | break; | |
780 | case 1024: | |
781 | hueBits = 5; | |
782 | satBits = 2; | |
783 | lumBits = 3; | |
784 | break; | |
785 | case 2048: | |
786 | hueBits = 5; | |
787 | satBits = 3; | |
788 | lumBits = 3; | |
789 | break; | |
790 | } | |
791 | hueStep = (int) (Math.pow(2, hueBits)); | |
792 | satStep = (int) (100 / Math.pow(2, satBits)); | |
793 | // 1 bit for luminance: 40 and 70. | |
794 | int lumBegin = 40; | |
795 | int lumStep = 30; | |
796 | switch (lumBits) { | |
797 | case 2: | |
798 | // 2 bits: 20, 40, 60, 80 | |
799 | lumBegin = 20; | |
800 | lumStep = 20; | |
801 | break; | |
802 | case 3: | |
803 | // 3 bits: 8, 20, 32, 44, 56, 68, 80, 92 | |
804 | lumBegin = 8; | |
805 | lumStep = 12; | |
806 | break; | |
807 | } | |
808 | ||
809 | // System.err.printf("<html><body>\n"); | |
810 | // Hue is evenly spaced around the wheel. | |
811 | hslColors = new ArrayList<ArrayList<ArrayList<ColorIdx>>>(); | |
812 | ||
813 | final boolean DEBUG = false; | |
814 | ArrayList<Integer> rawRgbList = new ArrayList<Integer>(); | |
815 | ||
816 | for (int hue = 0; hue < (360 - (360 % hueStep)); | |
817 | hue += (360/hueStep)) { | |
818 | ||
819 | ArrayList<ArrayList<ColorIdx>> satList = null; | |
820 | satList = new ArrayList<ArrayList<ColorIdx>>(); | |
821 | hslColors.add(satList); | |
822 | ||
823 | // Saturation is linearly spaced between pastel and pure. | |
824 | for (int sat = satStep; sat <= 100; sat += satStep) { | |
825 | ||
826 | ArrayList<ColorIdx> lumList = new ArrayList<ColorIdx>(); | |
827 | satList.add(lumList); | |
828 | ||
829 | // Luminance brackets the pure color, but leaning toward | |
830 | // lighter. | |
831 | for (int lum = lumBegin; lum < 100; lum += lumStep) { | |
832 | /* | |
833 | System.err.printf("<font style = \"color:"); | |
834 | System.err.printf("hsl(%d, %d%%, %d%%)", | |
835 | hue, sat, lum); | |
836 | System.err.printf(";\">=</font>\n"); | |
837 | */ | |
838 | int rgbColor = hslToRgb(hue, sat, lum); | |
839 | rgbColors.add(rgbColor); | |
840 | ColorIdx colorIdx = new ColorIdx(rgbColor, | |
841 | rgbColors.size() - 1); | |
842 | lumList.add(colorIdx); | |
843 | ||
844 | rawRgbList.add(rgbColor); | |
845 | if (DEBUG) { | |
846 | int red = (rgbColor >>> 16) & 0xFF; | |
847 | int green = (rgbColor >>> 8) & 0xFF; | |
848 | int blue = rgbColor & 0xFF; | |
849 | int [] backToHsl = new int[3]; | |
850 | rgbToHsl(red, green, blue, backToHsl); | |
851 | System.err.printf("%d [%d] %d [%d] %d [%d]\n", | |
852 | hue, backToHsl[0], sat, backToHsl[1], | |
853 | lum, backToHsl[2]); | |
854 | } | |
855 | } | |
856 | } | |
857 | } | |
858 | // System.err.printf("\n</body></html>\n"); | |
859 | ||
a75902fa | 860 | assert (rgbColors.size() == sixelPaletteSize); |
a69ed767 KL |
861 | |
862 | /* | |
863 | * We need to sort rgbColors, so that toSixel() can know where | |
864 | * BLACK and WHITE are in it. But we also need to be able to | |
865 | * find the sorted values using the old unsorted indexes. So we | |
866 | * will sort it, put all the indexes into a HashMap, and then | |
867 | * build rgbSortedIndex[]. | |
868 | */ | |
869 | Collections.sort(rgbColors); | |
870 | HashMap<Integer, Integer> rgbColorIndices = null; | |
871 | rgbColorIndices = new HashMap<Integer, Integer>(); | |
a75902fa | 872 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
873 | rgbColorIndices.put(rgbColors.get(i), i); |
874 | } | |
a75902fa | 875 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
876 | int rawColor = rawRgbList.get(i); |
877 | rgbSortedIndex[i] = rgbColorIndices.get(rawColor); | |
878 | } | |
879 | if (DEBUG) { | |
a75902fa | 880 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
881 | assert (rawRgbList != null); |
882 | int idx = rgbSortedIndex[i]; | |
883 | int rgbColor = rgbColors.get(idx); | |
a75902fa | 884 | if ((idx != 0) && (idx != sixelPaletteSize - 1)) { |
a69ed767 KL |
885 | /* |
886 | System.err.printf("%d %06x --> %d %06x\n", | |
887 | i, rawRgbList.get(i), idx, rgbColors.get(idx)); | |
888 | */ | |
889 | assert (rgbColor == rawRgbList.get(i)); | |
890 | } | |
891 | } | |
892 | } | |
893 | ||
894 | // Set the dimmest color as true black, and the brightest as true | |
895 | // white. | |
896 | rgbColors.set(0, 0); | |
a75902fa | 897 | rgbColors.set(sixelPaletteSize - 1, 0xFFFFFF); |
a69ed767 KL |
898 | |
899 | /* | |
900 | System.err.printf("<html><body>\n"); | |
901 | for (Integer rgb: rgbColors) { | |
902 | System.err.printf("<font style = \"color:"); | |
903 | System.err.printf("#%06x", rgb); | |
904 | System.err.printf(";\">=</font>\n"); | |
905 | } | |
906 | System.err.printf("\n</body></html>\n"); | |
907 | */ | |
908 | ||
909 | } | |
910 | ||
911 | /** | |
912 | * Emit the sixel palette. | |
913 | * | |
914 | * @param sb the StringBuilder to append to | |
915 | * @param used array of booleans set to true for each color actually | |
916 | * used in this cell, or null to emit the entire palette | |
917 | * @return the string to emit to an ANSI / ECMA-style terminal | |
918 | */ | |
919 | public String emitPalette(final StringBuilder sb, | |
920 | final boolean [] used) { | |
921 | ||
a75902fa | 922 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
923 | if (((used != null) && (used[i] == true)) || (used == null)) { |
924 | int rgbColor = rgbColors.get(i); | |
925 | sb.append(String.format("#%d;2;%d;%d;%d", i, | |
926 | ((rgbColor >>> 16) & 0xFF) * 100 / 255, | |
927 | ((rgbColor >>> 8) & 0xFF) * 100 / 255, | |
928 | ( rgbColor & 0xFF) * 100 / 255)); | |
929 | } | |
930 | } | |
931 | return sb.toString(); | |
932 | } | |
933 | } | |
934 | ||
935 | /** | |
9544763d KL |
936 | * ImageCache is a least-recently-used cache that hangs on to the |
937 | * post-rendered sixel or iTerm2 string for a particular set of cells. | |
a69ed767 | 938 | */ |
9544763d | 939 | private class ImageCache { |
a69ed767 KL |
940 | |
941 | /** | |
942 | * Maximum size of the cache. | |
943 | */ | |
944 | private int maxSize = 100; | |
945 | ||
946 | /** | |
947 | * The entries stored in the cache. | |
948 | */ | |
949 | private HashMap<String, CacheEntry> cache = null; | |
950 | ||
951 | /** | |
952 | * CacheEntry is one entry in the cache. | |
953 | */ | |
954 | private class CacheEntry { | |
955 | /** | |
956 | * The cache key. | |
957 | */ | |
958 | public String key; | |
959 | ||
960 | /** | |
961 | * The cache data. | |
962 | */ | |
963 | public String data; | |
964 | ||
965 | /** | |
966 | * The last time this entry was used. | |
967 | */ | |
968 | public long millis = 0; | |
969 | ||
970 | /** | |
971 | * Public constructor. | |
972 | * | |
973 | * @param key the cache entry key | |
974 | * @param data the cache entry data | |
975 | */ | |
976 | public CacheEntry(final String key, final String data) { | |
977 | this.key = key; | |
978 | this.data = data; | |
979 | this.millis = System.currentTimeMillis(); | |
980 | } | |
981 | } | |
982 | ||
983 | /** | |
984 | * Public constructor. | |
985 | * | |
986 | * @param maxSize the maximum size of the cache | |
987 | */ | |
9544763d | 988 | public ImageCache(final int maxSize) { |
a69ed767 KL |
989 | this.maxSize = maxSize; |
990 | cache = new HashMap<String, CacheEntry>(); | |
991 | } | |
992 | ||
993 | /** | |
994 | * Make a unique key for a list of cells. | |
995 | * | |
996 | * @param cells the cells | |
997 | * @return the key | |
998 | */ | |
999 | private String makeKey(final ArrayList<Cell> cells) { | |
1000 | StringBuilder sb = new StringBuilder(); | |
1001 | for (Cell cell: cells) { | |
1002 | sb.append(cell.hashCode()); | |
1003 | } | |
1004 | return sb.toString(); | |
1005 | } | |
1006 | ||
1007 | /** | |
1008 | * Get an entry from the cache. | |
1009 | * | |
1010 | * @param cells the list of cells that are the cache key | |
1011 | * @return the sixel string representing these cells, or null if this | |
1012 | * list of cells is not in the cache | |
1013 | */ | |
1014 | public String get(final ArrayList<Cell> cells) { | |
1015 | CacheEntry entry = cache.get(makeKey(cells)); | |
1016 | if (entry == null) { | |
1017 | return null; | |
1018 | } | |
1019 | entry.millis = System.currentTimeMillis(); | |
1020 | return entry.data; | |
1021 | } | |
1022 | ||
1023 | /** | |
1024 | * Put an entry into the cache. | |
1025 | * | |
1026 | * @param cells the list of cells that are the cache key | |
1027 | * @param data the sixel string representing these cells | |
1028 | */ | |
1029 | public void put(final ArrayList<Cell> cells, final String data) { | |
1030 | String key = makeKey(cells); | |
1031 | ||
1032 | // System.err.println("put() " + key + " size " + cache.size()); | |
1033 | ||
1034 | assert (!cache.containsKey(key)); | |
1035 | ||
1036 | assert (cache.size() <= maxSize); | |
1037 | if (cache.size() == maxSize) { | |
1038 | // Cache is at limit, evict oldest entry. | |
1039 | long oldestTime = Long.MAX_VALUE; | |
1040 | String keyToRemove = null; | |
1041 | for (CacheEntry entry: cache.values()) { | |
1042 | if ((entry.millis < oldestTime) || (keyToRemove == null)) { | |
1043 | keyToRemove = entry.key; | |
1044 | oldestTime = entry.millis; | |
1045 | } | |
1046 | } | |
1047 | /* | |
1048 | System.err.println("put() remove key = " + keyToRemove + | |
1049 | " size " + cache.size()); | |
1050 | */ | |
1051 | assert (keyToRemove != null); | |
1052 | cache.remove(keyToRemove); | |
1053 | /* | |
1054 | System.err.println("put() removed, size " + cache.size()); | |
1055 | */ | |
1056 | } | |
1057 | assert (cache.size() <= maxSize); | |
1058 | CacheEntry entry = new CacheEntry(key, data); | |
1059 | assert (key.equals(entry.key)); | |
1060 | cache.put(key, entry); | |
1061 | /* | |
1062 | System.err.println("put() added key " + key + " " + | |
1063 | " size " + cache.size()); | |
1064 | */ | |
1065 | } | |
1066 | ||
1067 | } | |
1068 | ||
d36057df KL |
1069 | // ------------------------------------------------------------------------ |
1070 | // Constructors ----------------------------------------------------------- | |
1071 | // ------------------------------------------------------------------------ | |
b1589621 KL |
1072 | |
1073 | /** | |
9f613a0c KL |
1074 | * Constructor sets up state for getEvent(). If either windowWidth or |
1075 | * windowHeight are less than 1, the terminal is not resized. | |
eb29bbb5 KL |
1076 | * |
1077 | * @param listener the object this backend needs to wake up when new | |
1078 | * input comes in | |
1079 | * @param input an InputStream connected to the remote user, or null for | |
1080 | * System.in. If System.in is used, then on non-Windows systems it will | |
d91ac0f5 KL |
1081 | * be put in raw mode; closeTerminal() will (blindly!) put System.in in |
1082 | * cooked mode. input is always converted to a Reader with UTF-8 | |
1083 | * encoding. | |
eb29bbb5 KL |
1084 | * @param output an OutputStream connected to the remote user, or null |
1085 | * for System.out. output is always converted to a Writer with UTF-8 | |
1086 | * encoding. | |
1087 | * @param windowWidth the number of text columns to start with | |
1088 | * @param windowHeight the number of text rows to start with | |
1089 | * @throws UnsupportedEncodingException if an exception is thrown when | |
1090 | * creating the InputStreamReader | |
1091 | */ | |
1092 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1093 | final OutputStream output, final int windowWidth, | |
1094 | final int windowHeight) throws UnsupportedEncodingException { | |
1095 | ||
1096 | this(listener, input, output); | |
1097 | ||
1098 | // Send dtterm/xterm sequences, which will probably not work because | |
1099 | // allowWindowOps is defaulted to false. | |
9f613a0c KL |
1100 | if ((windowWidth > 0) && (windowHeight > 0)) { |
1101 | String resizeString = String.format("\033[8;%d;%dt", windowHeight, | |
1102 | windowWidth); | |
1103 | this.output.write(resizeString); | |
1104 | this.output.flush(); | |
1105 | } | |
eb29bbb5 KL |
1106 | } |
1107 | ||
1108 | /** | |
1109 | * Constructor sets up state for getEvent(). | |
b1589621 | 1110 | * |
92554d64 KL |
1111 | * @param listener the object this backend needs to wake up when new |
1112 | * input comes in | |
b1589621 KL |
1113 | * @param input an InputStream connected to the remote user, or null for |
1114 | * System.in. If System.in is used, then on non-Windows systems it will | |
d91ac0f5 KL |
1115 | * be put in raw mode; closeTerminal() will (blindly!) put System.in in |
1116 | * cooked mode. input is always converted to a Reader with UTF-8 | |
1117 | * encoding. | |
b1589621 KL |
1118 | * @param output an OutputStream connected to the remote user, or null |
1119 | * for System.out. output is always converted to a Writer with UTF-8 | |
1120 | * encoding. | |
7b5261bc KL |
1121 | * @throws UnsupportedEncodingException if an exception is thrown when |
1122 | * creating the InputStreamReader | |
b1589621 | 1123 | */ |
92554d64 | 1124 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
1125 | final OutputStream output) throws UnsupportedEncodingException { |
1126 | ||
42873e30 | 1127 | resetParser(); |
7b5261bc KL |
1128 | mouse1 = false; |
1129 | mouse2 = false; | |
1130 | mouse3 = false; | |
1131 | stopReaderThread = false; | |
92554d64 | 1132 | this.listener = listener; |
7b5261bc KL |
1133 | |
1134 | if (input == null) { | |
1135 | // inputStream = System.in; | |
1136 | inputStream = new FileInputStream(FileDescriptor.in); | |
1137 | sttyRaw(); | |
1138 | setRawMode = true; | |
1139 | } else { | |
1140 | inputStream = input; | |
1141 | } | |
1142 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
1143 | ||
7b5261bc | 1144 | if (input instanceof SessionInfo) { |
ea91242c KL |
1145 | // This is a TelnetInputStream that exposes window size and |
1146 | // environment variables from the telnet layer. | |
7b5261bc KL |
1147 | sessionInfo = (SessionInfo) input; |
1148 | } | |
1149 | if (sessionInfo == null) { | |
1150 | if (input == null) { | |
1151 | // Reading right off the tty | |
1152 | sessionInfo = new TTYSessionInfo(); | |
1153 | } else { | |
1154 | sessionInfo = new TSessionInfo(); | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | if (output == null) { | |
1159 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
1160 | "UTF-8")); | |
1161 | } else { | |
1162 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
1163 | "UTF-8")); | |
1164 | } | |
1165 | ||
686d4da2 KL |
1166 | // Request Device Attributes |
1167 | this.output.printf("\033[c"); | |
1168 | ||
65462d0d KL |
1169 | // Request xterm report window/cell dimensions in pixels |
1170 | this.output.printf("%s", xtermReportPixelDimensions()); | |
a69ed767 | 1171 | |
7b5261bc KL |
1172 | // Enable mouse reporting and metaSendsEscape |
1173 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
1174 | ||
65462d0d KL |
1175 | // Request xterm use the sixel settings we want |
1176 | this.output.printf("%s", xtermSetSixelSettings()); | |
1177 | ||
854cad3b KL |
1178 | this.output.flush(); |
1179 | ||
3e074355 KL |
1180 | // Query the screen size |
1181 | sessionInfo.queryWindowSize(); | |
1182 | setDimensions(sessionInfo.getWindowWidth(), | |
1183 | sessionInfo.getWindowHeight()); | |
1184 | ||
7b5261bc KL |
1185 | // Hang onto the window size |
1186 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1187 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1188 | ||
e23ea538 | 1189 | reloadOptions(); |
a69ed767 | 1190 | |
7b5261bc | 1191 | // Spin up the input reader |
63bb9478 | 1192 | eventQueue = new ArrayList<TInputEvent>(); |
7b5261bc KL |
1193 | readerThread = new Thread(this); |
1194 | readerThread.start(); | |
42873e30 | 1195 | |
42873e30 KL |
1196 | // Clear the screen |
1197 | this.output.write(clearAll()); | |
1198 | this.output.flush(); | |
b1589621 KL |
1199 | } |
1200 | ||
6985c572 KL |
1201 | /** |
1202 | * Constructor sets up state for getEvent(). | |
1203 | * | |
1204 | * @param listener the object this backend needs to wake up when new | |
1205 | * input comes in | |
1206 | * @param input the InputStream underlying 'reader'. Its available() | |
1207 | * method is used to determine if reader.read() will block or not. | |
1208 | * @param reader a Reader connected to the remote user. | |
1209 | * @param writer a PrintWriter connected to the remote user. | |
1210 | * @param setRawMode if true, set System.in into raw mode with stty. | |
1211 | * This should in general not be used. It is here solely for Demo3, | |
1212 | * which uses System.in. | |
1213 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1214 | */ | |
1215 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1216 | final Reader reader, final PrintWriter writer, | |
1217 | final boolean setRawMode) { | |
1218 | ||
1219 | if (input == null) { | |
1220 | throw new IllegalArgumentException("InputStream must be specified"); | |
1221 | } | |
1222 | if (reader == null) { | |
1223 | throw new IllegalArgumentException("Reader must be specified"); | |
1224 | } | |
1225 | if (writer == null) { | |
1226 | throw new IllegalArgumentException("Writer must be specified"); | |
1227 | } | |
42873e30 | 1228 | resetParser(); |
6985c572 KL |
1229 | mouse1 = false; |
1230 | mouse2 = false; | |
1231 | mouse3 = false; | |
1232 | stopReaderThread = false; | |
1233 | this.listener = listener; | |
1234 | ||
1235 | inputStream = input; | |
1236 | this.input = reader; | |
1237 | ||
1238 | if (setRawMode == true) { | |
1239 | sttyRaw(); | |
1240 | } | |
1241 | this.setRawMode = setRawMode; | |
1242 | ||
1243 | if (input instanceof SessionInfo) { | |
1244 | // This is a TelnetInputStream that exposes window size and | |
1245 | // environment variables from the telnet layer. | |
1246 | sessionInfo = (SessionInfo) input; | |
1247 | } | |
1248 | if (sessionInfo == null) { | |
31b7033c KL |
1249 | if (setRawMode == true) { |
1250 | // Reading right off the tty | |
1251 | sessionInfo = new TTYSessionInfo(); | |
1252 | } else { | |
1253 | sessionInfo = new TSessionInfo(); | |
1254 | } | |
6985c572 KL |
1255 | } |
1256 | ||
1257 | this.output = writer; | |
1258 | ||
686d4da2 KL |
1259 | // Request Device Attributes |
1260 | this.output.printf("\033[c"); | |
1261 | ||
65462d0d KL |
1262 | // Request xterm report window/cell dimensions in pixels |
1263 | this.output.printf("%s", xtermReportPixelDimensions()); | |
a69ed767 | 1264 | |
6985c572 KL |
1265 | // Enable mouse reporting and metaSendsEscape |
1266 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
6985c572 | 1267 | |
65462d0d KL |
1268 | // Request xterm use the sixel settings we want |
1269 | this.output.printf("%s", xtermSetSixelSettings()); | |
1270 | ||
854cad3b KL |
1271 | this.output.flush(); |
1272 | ||
3e074355 KL |
1273 | // Query the screen size |
1274 | sessionInfo.queryWindowSize(); | |
1275 | setDimensions(sessionInfo.getWindowWidth(), | |
1276 | sessionInfo.getWindowHeight()); | |
1277 | ||
6985c572 KL |
1278 | // Hang onto the window size |
1279 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1280 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1281 | ||
e23ea538 | 1282 | reloadOptions(); |
a69ed767 | 1283 | |
6985c572 | 1284 | // Spin up the input reader |
63bb9478 | 1285 | eventQueue = new ArrayList<TInputEvent>(); |
6985c572 KL |
1286 | readerThread = new Thread(this); |
1287 | readerThread.start(); | |
42873e30 | 1288 | |
42873e30 KL |
1289 | // Clear the screen |
1290 | this.output.write(clearAll()); | |
1291 | this.output.flush(); | |
6985c572 KL |
1292 | } |
1293 | ||
1294 | /** | |
1295 | * Constructor sets up state for getEvent(). | |
1296 | * | |
1297 | * @param listener the object this backend needs to wake up when new | |
1298 | * input comes in | |
1299 | * @param input the InputStream underlying 'reader'. Its available() | |
1300 | * method is used to determine if reader.read() will block or not. | |
1301 | * @param reader a Reader connected to the remote user. | |
1302 | * @param writer a PrintWriter connected to the remote user. | |
1303 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1304 | */ | |
1305 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1306 | final Reader reader, final PrintWriter writer) { | |
1307 | ||
1308 | this(listener, input, reader, writer, false); | |
1309 | } | |
1310 | ||
d36057df KL |
1311 | // ------------------------------------------------------------------------ |
1312 | // LogicalScreen ---------------------------------------------------------- | |
1313 | // ------------------------------------------------------------------------ | |
1314 | ||
1315 | /** | |
1316 | * Set the window title. | |
1317 | * | |
1318 | * @param title the new title | |
1319 | */ | |
1320 | @Override | |
1321 | public void setTitle(final String title) { | |
1322 | output.write(getSetTitleString(title)); | |
1323 | flush(); | |
1324 | } | |
1325 | ||
1326 | /** | |
1327 | * Push the logical screen to the physical device. | |
1328 | */ | |
1329 | @Override | |
1330 | public void flushPhysical() { | |
a69ed767 | 1331 | StringBuilder sb = new StringBuilder(); |
d36057df KL |
1332 | if ((cursorVisible) |
1333 | && (cursorY >= 0) | |
1334 | && (cursorX >= 0) | |
1335 | && (cursorY <= height - 1) | |
1336 | && (cursorX <= width - 1) | |
1337 | ) { | |
a69ed767 KL |
1338 | flushString(sb); |
1339 | sb.append(cursor(true)); | |
1340 | sb.append(gotoXY(cursorX, cursorY)); | |
d36057df | 1341 | } else { |
a69ed767 KL |
1342 | sb.append(cursor(false)); |
1343 | flushString(sb); | |
d36057df | 1344 | } |
a69ed767 | 1345 | output.write(sb.toString()); |
d36057df KL |
1346 | flush(); |
1347 | } | |
1348 | ||
9696a8f6 KL |
1349 | /** |
1350 | * Resize the physical screen to match the logical screen dimensions. | |
1351 | */ | |
1352 | @Override | |
1353 | public void resizeToScreen() { | |
1354 | // Send dtterm/xterm sequences, which will probably not work because | |
1355 | // allowWindowOps is defaulted to false. | |
1356 | String resizeString = String.format("\033[8;%d;%dt", getHeight(), | |
1357 | getWidth()); | |
1358 | this.output.write(resizeString); | |
1359 | this.output.flush(); | |
1360 | } | |
1361 | ||
d36057df KL |
1362 | // ------------------------------------------------------------------------ |
1363 | // TerminalReader --------------------------------------------------------- | |
1364 | // ------------------------------------------------------------------------ | |
1365 | ||
1366 | /** | |
1367 | * Check if there are events in the queue. | |
1368 | * | |
1369 | * @return if true, getEvents() has something to return to the backend | |
1370 | */ | |
1371 | public boolean hasEvents() { | |
1372 | synchronized (eventQueue) { | |
1373 | return (eventQueue.size() > 0); | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | /** | |
1378 | * Return any events in the IO queue. | |
1379 | * | |
1380 | * @param queue list to append new events to | |
1381 | */ | |
1382 | public void getEvents(final List<TInputEvent> queue) { | |
1383 | synchronized (eventQueue) { | |
1384 | if (eventQueue.size() > 0) { | |
1385 | synchronized (queue) { | |
1386 | queue.addAll(eventQueue); | |
1387 | } | |
1388 | eventQueue.clear(); | |
1389 | } | |
1390 | } | |
1391 | } | |
1392 | ||
b1589621 | 1393 | /** |
7b5261bc | 1394 | * Restore terminal to normal state. |
b1589621 | 1395 | */ |
42873e30 | 1396 | public void closeTerminal() { |
4328bb42 | 1397 | |
d91ac0f5 | 1398 | // System.err.println("=== closeTerminal() ==="); System.err.flush(); |
7b5261bc KL |
1399 | |
1400 | // Tell the reader thread to stop looking at input | |
1401 | stopReaderThread = true; | |
1402 | try { | |
1403 | readerThread.join(); | |
1404 | } catch (InterruptedException e) { | |
a69ed767 KL |
1405 | if (debugToStderr) { |
1406 | e.printStackTrace(); | |
1407 | } | |
7b5261bc KL |
1408 | } |
1409 | ||
0525b2ed KL |
1410 | // Disable mouse reporting and show cursor. Defensive null check |
1411 | // here in case closeTerminal() is called twice. | |
1412 | if (output != null) { | |
65462d0d KL |
1413 | output.printf("%s%s%s%s", mouse(false), cursor(true), |
1414 | defaultColor(), xtermResetSixelSettings()); | |
0525b2ed KL |
1415 | output.flush(); |
1416 | } | |
7b5261bc KL |
1417 | |
1418 | if (setRawMode) { | |
1419 | sttyCooked(); | |
1420 | setRawMode = false; | |
1421 | // We don't close System.in/out | |
1422 | } else { | |
1423 | // Shut down the streams, this should wake up the reader thread | |
1424 | // and make it exit. | |
a69ed767 KL |
1425 | if (input != null) { |
1426 | try { | |
7b5261bc | 1427 | input.close(); |
a69ed767 KL |
1428 | } catch (IOException e) { |
1429 | // SQUASH | |
7b5261bc | 1430 | } |
a69ed767 KL |
1431 | input = null; |
1432 | } | |
1433 | if (output != null) { | |
1434 | output.close(); | |
1435 | output = null; | |
7b5261bc KL |
1436 | } |
1437 | } | |
b1589621 KL |
1438 | } |
1439 | ||
d36057df KL |
1440 | /** |
1441 | * Set listener to a different Object. | |
1442 | * | |
1443 | * @param listener the new listening object that run() wakes up on new | |
1444 | * input | |
1445 | */ | |
1446 | public void setListener(final Object listener) { | |
1447 | this.listener = listener; | |
1448 | } | |
1449 | ||
e23ea538 KL |
1450 | /** |
1451 | * Reload options from System properties. | |
1452 | */ | |
1453 | public void reloadOptions() { | |
1454 | // Permit RGB colors only if externally requested. | |
1455 | if (System.getProperty("jexer.ECMA48.rgbColor", | |
1456 | "false").equals("true") | |
1457 | ) { | |
1458 | doRgbColor = true; | |
1459 | } else { | |
1460 | doRgbColor = false; | |
1461 | } | |
1462 | ||
9544763d | 1463 | // Default to using images for full-width characters. |
772b8255 KL |
1464 | if (System.getProperty("jexer.ECMA48.wideCharImages", |
1465 | "true").equals("true")) { | |
1466 | wideCharImages = true; | |
1467 | } else { | |
1468 | wideCharImages = false; | |
1469 | } | |
1470 | ||
e23ea538 KL |
1471 | // Pull the system properties for sixel output. |
1472 | if (System.getProperty("jexer.ECMA48.sixel", "true").equals("true")) { | |
1473 | sixel = true; | |
1474 | } else { | |
1475 | sixel = false; | |
1476 | } | |
a75902fa KL |
1477 | |
1478 | // Palette size | |
1479 | int paletteSize = 1024; | |
1480 | try { | |
1481 | paletteSize = Integer.parseInt(System.getProperty( | |
1482 | "jexer.ECMA48.sixelPaletteSize", "1024")); | |
1483 | switch (paletteSize) { | |
1484 | case 2: | |
1485 | case 256: | |
1486 | case 512: | |
1487 | case 1024: | |
1488 | case 2048: | |
1489 | sixelPaletteSize = paletteSize; | |
1490 | break; | |
1491 | default: | |
1492 | // Ignore value | |
1493 | break; | |
1494 | } | |
1495 | } catch (NumberFormatException e) { | |
1496 | // SQUASH | |
1497 | } | |
d91ac0f5 | 1498 | |
1db1bc02 KL |
1499 | // Shared palette |
1500 | if (System.getProperty("jexer.ECMA48.sixelSharedPalette", | |
1501 | "true").equals("false")) { | |
1502 | sixelSharedPalette = false; | |
1503 | } else { | |
1504 | sixelSharedPalette = true; | |
1505 | } | |
1506 | ||
83787cfb | 1507 | // Default to not supporting iTerm2 images. |
9544763d KL |
1508 | if (System.getProperty("jexer.ECMA48.iTerm2Images", |
1509 | "false").equals("true")) { | |
1510 | iterm2Images = true; | |
1511 | } else { | |
1512 | iterm2Images = false; | |
1513 | } | |
1514 | ||
83787cfb KL |
1515 | // Default to using JPG Jexer images if terminal supports it. |
1516 | String jexerImageStr = System.getProperty("jexer.ECMA48.jexerImages", | |
1517 | "jpg").toLowerCase(); | |
1518 | if (jexerImageStr.equals("false")) { | |
1519 | jexerImageOption = JexerImageOption.DISABLED; | |
1520 | } else if (jexerImageStr.equals("jpg")) { | |
1521 | jexerImageOption = JexerImageOption.JPG; | |
1522 | } else if (jexerImageStr.equals("png")) { | |
1523 | jexerImageOption = JexerImageOption.PNG; | |
1524 | } else if (jexerImageStr.equals("rgb")) { | |
1525 | jexerImageOption = JexerImageOption.RGB; | |
1526 | } | |
1527 | ||
d91ac0f5 KL |
1528 | // Set custom colors |
1529 | setCustomSystemColors(); | |
e23ea538 KL |
1530 | } |
1531 | ||
d36057df KL |
1532 | // ------------------------------------------------------------------------ |
1533 | // Runnable --------------------------------------------------------------- | |
1534 | // ------------------------------------------------------------------------ | |
1535 | ||
1536 | /** | |
1537 | * Read function runs on a separate thread. | |
1538 | */ | |
1539 | public void run() { | |
1540 | boolean done = false; | |
1541 | // available() will often return > 1, so we need to read in chunks to | |
1542 | // stay caught up. | |
1543 | char [] readBuffer = new char[128]; | |
63bb9478 | 1544 | List<TInputEvent> events = new ArrayList<TInputEvent>(); |
d36057df KL |
1545 | |
1546 | while (!done && !stopReaderThread) { | |
1547 | try { | |
1548 | // We assume that if inputStream has bytes available, then | |
1549 | // input won't block on read(). | |
1550 | int n = inputStream.available(); | |
1551 | ||
1552 | /* | |
1553 | System.err.printf("inputStream.available(): %d\n", n); | |
1554 | System.err.flush(); | |
1555 | */ | |
1556 | ||
1557 | if (n > 0) { | |
1558 | if (readBuffer.length < n) { | |
1559 | // The buffer wasn't big enough, make it huger | |
1560 | readBuffer = new char[readBuffer.length * 2]; | |
1561 | } | |
1562 | ||
1563 | // System.err.printf("BEFORE read()\n"); System.err.flush(); | |
1564 | ||
1565 | int rc = input.read(readBuffer, 0, readBuffer.length); | |
1566 | ||
1567 | /* | |
1568 | System.err.printf("AFTER read() %d\n", rc); | |
1569 | System.err.flush(); | |
1570 | */ | |
1571 | ||
1572 | if (rc == -1) { | |
1573 | // This is EOF | |
1574 | done = true; | |
1575 | } else { | |
1576 | for (int i = 0; i < rc; i++) { | |
1577 | int ch = readBuffer[i]; | |
1578 | processChar(events, (char)ch); | |
1579 | } | |
1580 | getIdleEvents(events); | |
1581 | if (events.size() > 0) { | |
1582 | // Add to the queue for the backend thread to | |
1583 | // be able to obtain. | |
1584 | synchronized (eventQueue) { | |
1585 | eventQueue.addAll(events); | |
1586 | } | |
1587 | if (listener != null) { | |
1588 | synchronized (listener) { | |
1589 | listener.notifyAll(); | |
1590 | } | |
1591 | } | |
1592 | events.clear(); | |
1593 | } | |
1594 | } | |
1595 | } else { | |
1596 | getIdleEvents(events); | |
1597 | if (events.size() > 0) { | |
1598 | synchronized (eventQueue) { | |
1599 | eventQueue.addAll(events); | |
1600 | } | |
1601 | if (listener != null) { | |
1602 | synchronized (listener) { | |
1603 | listener.notifyAll(); | |
1604 | } | |
1605 | } | |
1606 | events.clear(); | |
1607 | } | |
1608 | ||
eb0d6c82 KL |
1609 | if (output.checkError()) { |
1610 | // This is EOF. | |
1611 | done = true; | |
1612 | } | |
1613 | ||
d36057df KL |
1614 | // Wait 20 millis for more data |
1615 | Thread.sleep(20); | |
1616 | } | |
1617 | // System.err.println("end while loop"); System.err.flush(); | |
1618 | } catch (InterruptedException e) { | |
1619 | // SQUASH | |
1620 | } catch (IOException e) { | |
1621 | e.printStackTrace(); | |
1622 | done = true; | |
1623 | } | |
1624 | } // while ((done == false) && (stopReaderThread == false)) | |
eb0d6c82 | 1625 | |
abb84744 KL |
1626 | // Pass an event up to TApplication to tell it this Backend is done. |
1627 | synchronized (eventQueue) { | |
1628 | eventQueue.add(new TCommandEvent(cmBackendDisconnect)); | |
1629 | } | |
1630 | if (listener != null) { | |
1631 | synchronized (listener) { | |
1632 | listener.notifyAll(); | |
1633 | } | |
1634 | } | |
eb0d6c82 | 1635 | |
d4bcb88c | 1636 | // System.err.println("*** run() exiting..."); System.err.flush(); |
d36057df KL |
1637 | } |
1638 | ||
1639 | // ------------------------------------------------------------------------ | |
1640 | // ECMA48Terminal --------------------------------------------------------- | |
1641 | // ------------------------------------------------------------------------ | |
1642 | ||
a69ed767 KL |
1643 | /** |
1644 | * Get the width of a character cell in pixels. | |
1645 | * | |
1646 | * @return the width in pixels of a character cell | |
1647 | */ | |
1648 | public int getTextWidth() { | |
c950b791 KL |
1649 | if (sessionInfo.getWindowWidth() > 0) { |
1650 | return (widthPixels / sessionInfo.getWindowWidth()); | |
1651 | } | |
1652 | return 16; | |
a69ed767 KL |
1653 | } |
1654 | ||
1655 | /** | |
1656 | * Get the height of a character cell in pixels. | |
1657 | * | |
1658 | * @return the height in pixels of a character cell | |
1659 | */ | |
1660 | public int getTextHeight() { | |
c950b791 KL |
1661 | if (sessionInfo.getWindowHeight() > 0) { |
1662 | return (heightPixels / sessionInfo.getWindowHeight()); | |
1663 | } | |
1664 | return 20; | |
a69ed767 KL |
1665 | } |
1666 | ||
d36057df KL |
1667 | /** |
1668 | * Getter for sessionInfo. | |
1669 | * | |
1670 | * @return the SessionInfo | |
1671 | */ | |
1672 | public SessionInfo getSessionInfo() { | |
1673 | return sessionInfo; | |
1674 | } | |
1675 | ||
1676 | /** | |
1677 | * Get the output writer. | |
1678 | * | |
1679 | * @return the Writer | |
1680 | */ | |
1681 | public PrintWriter getOutput() { | |
1682 | return output; | |
1683 | } | |
1684 | ||
1685 | /** | |
1686 | * Call 'stty' to set cooked mode. | |
1687 | * | |
1688 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
1689 | */ | |
1690 | private void sttyCooked() { | |
1691 | doStty(false); | |
1692 | } | |
1693 | ||
1694 | /** | |
1695 | * Call 'stty' to set raw mode. | |
1696 | * | |
1697 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
1698 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
1699 | * -parenb cs8 min 1 < /dev/tty' | |
1700 | */ | |
1701 | private void sttyRaw() { | |
1702 | doStty(true); | |
1703 | } | |
1704 | ||
1705 | /** | |
1706 | * Call 'stty' to set raw or cooked mode. | |
1707 | * | |
1708 | * @param mode if true, set raw mode, otherwise set cooked mode | |
1709 | */ | |
1710 | private void doStty(final boolean mode) { | |
1711 | String [] cmdRaw = { | |
1712 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
1713 | }; | |
1714 | String [] cmdCooked = { | |
1715 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
1716 | }; | |
1717 | try { | |
1718 | Process process; | |
1719 | if (mode) { | |
1720 | process = Runtime.getRuntime().exec(cmdRaw); | |
1721 | } else { | |
1722 | process = Runtime.getRuntime().exec(cmdCooked); | |
1723 | } | |
1724 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
1725 | String line = in.readLine(); | |
1726 | if ((line != null) && (line.length() > 0)) { | |
1727 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
1728 | } | |
1729 | while (true) { | |
1730 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
1731 | line = err.readLine(); | |
1732 | if ((line != null) && (line.length() > 0)) { | |
1733 | System.err.println("Error output from stty: " + line); | |
1734 | } | |
1735 | try { | |
1736 | process.waitFor(); | |
1737 | break; | |
1738 | } catch (InterruptedException e) { | |
a69ed767 KL |
1739 | if (debugToStderr) { |
1740 | e.printStackTrace(); | |
1741 | } | |
d36057df KL |
1742 | } |
1743 | } | |
1744 | int rc = process.exitValue(); | |
1745 | if (rc != 0) { | |
1746 | System.err.println("stty returned error code: " + rc); | |
1747 | } | |
1748 | } catch (IOException e) { | |
1749 | e.printStackTrace(); | |
1750 | } | |
1751 | } | |
1752 | ||
b1589621 | 1753 | /** |
7b5261bc | 1754 | * Flush output. |
b1589621 KL |
1755 | */ |
1756 | public void flush() { | |
7b5261bc | 1757 | output.flush(); |
b1589621 KL |
1758 | } |
1759 | ||
42873e30 KL |
1760 | /** |
1761 | * Perform a somewhat-optimal rendering of a line. | |
1762 | * | |
1763 | * @param y row coordinate. 0 is the top-most row. | |
1764 | * @param sb StringBuilder to write escape sequences to | |
1765 | * @param lastAttr cell attributes from the last call to flushLine | |
1766 | */ | |
1767 | private void flushLine(final int y, final StringBuilder sb, | |
1768 | CellAttributes lastAttr) { | |
1769 | ||
1770 | int lastX = -1; | |
1771 | int textEnd = 0; | |
1772 | for (int x = 0; x < width; x++) { | |
1773 | Cell lCell = logical[x][y]; | |
1774 | if (!lCell.isBlank()) { | |
1775 | textEnd = x; | |
1776 | } | |
1777 | } | |
1778 | // Push textEnd to first column beyond the text area | |
1779 | textEnd++; | |
1780 | ||
1781 | // DEBUG | |
1782 | // reallyCleared = true; | |
1783 | ||
a69ed767 KL |
1784 | boolean hasImage = false; |
1785 | ||
42873e30 KL |
1786 | for (int x = 0; x < width; x++) { |
1787 | Cell lCell = logical[x][y]; | |
1788 | Cell pCell = physical[x][y]; | |
1789 | ||
1790 | if (!lCell.equals(pCell) || reallyCleared) { | |
1791 | ||
1792 | if (debugToStderr) { | |
1793 | System.err.printf("\n--\n"); | |
1794 | System.err.printf(" Y: %d X: %d\n", y, x); | |
1795 | System.err.printf(" lCell: %s\n", lCell); | |
1796 | System.err.printf(" pCell: %s\n", pCell); | |
1797 | System.err.printf(" ==== \n"); | |
1798 | } | |
1799 | ||
1800 | if (lastAttr == null) { | |
1801 | lastAttr = new CellAttributes(); | |
1802 | sb.append(normal()); | |
1803 | } | |
1804 | ||
1805 | // Place the cell | |
1806 | if ((lastX != (x - 1)) || (lastX == -1)) { | |
1807 | // Advancing at least one cell, or the first gotoXY | |
1808 | sb.append(gotoXY(x, y)); | |
1809 | } | |
1810 | ||
1811 | assert (lastAttr != null); | |
1812 | ||
1813 | if ((x == textEnd) && (textEnd < width - 1)) { | |
1814 | assert (lCell.isBlank()); | |
1815 | ||
1816 | for (int i = x; i < width; i++) { | |
1817 | assert (logical[i][y].isBlank()); | |
1818 | // Physical is always updated | |
1819 | physical[i][y].reset(); | |
1820 | } | |
1821 | ||
1822 | // Clear remaining line | |
1823 | sb.append(clearRemainingLine()); | |
1824 | lastAttr.reset(); | |
1825 | return; | |
1826 | } | |
1827 | ||
a69ed767 KL |
1828 | // Image cell: bypass the rest of the loop, it is not |
1829 | // rendered here. | |
772b8255 KL |
1830 | if ((wideCharImages && lCell.isImage()) |
1831 | || (!wideCharImages | |
1832 | && lCell.isImage() | |
1833 | && (lCell.getWidth() == Cell.Width.SINGLE)) | |
1834 | ) { | |
a69ed767 KL |
1835 | hasImage = true; |
1836 | ||
1837 | // Save the last rendered cell | |
1838 | lastX = x; | |
1839 | ||
1840 | // Physical is always updated | |
1841 | physical[x][y].setTo(lCell); | |
1842 | continue; | |
1843 | } | |
1844 | ||
772b8255 KL |
1845 | assert ((wideCharImages && !lCell.isImage()) |
1846 | || (!wideCharImages | |
1847 | && (!lCell.isImage() | |
1848 | || (lCell.isImage() | |
1849 | && (lCell.getWidth() != Cell.Width.SINGLE))))); | |
1850 | ||
1851 | if (!wideCharImages && (lCell.getWidth() == Cell.Width.RIGHT)) { | |
1852 | continue; | |
1853 | } | |
1854 | ||
a69ed767 KL |
1855 | if (hasImage) { |
1856 | hasImage = false; | |
1857 | sb.append(gotoXY(x, y)); | |
1858 | } | |
1859 | ||
42873e30 KL |
1860 | // Now emit only the modified attributes |
1861 | if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1862 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1863 | && (!lCell.isRGB()) |
42873e30 KL |
1864 | && (lCell.isBold() == lastAttr.isBold()) |
1865 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1866 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1867 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1868 | ) { | |
1869 | // Both colors changed, attributes the same | |
1870 | sb.append(color(lCell.isBold(), | |
1871 | lCell.getForeColor(), lCell.getBackColor())); | |
1872 | ||
1873 | if (debugToStderr) { | |
1874 | System.err.printf("1 Change only fore/back colors\n"); | |
1875 | } | |
051e2913 KL |
1876 | |
1877 | } else if (lCell.isRGB() | |
1878 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1879 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1880 | && (lCell.isBold() == lastAttr.isBold()) | |
1881 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1882 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1883 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1884 | ) { | |
1885 | // Both colors changed, attributes the same | |
1886 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
1887 | lCell.getBackColorRGB())); | |
1888 | ||
1889 | if (debugToStderr) { | |
1890 | System.err.printf("1 Change only fore/back colors (RGB)\n"); | |
1891 | } | |
42873e30 KL |
1892 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) |
1893 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1894 | && (!lCell.isRGB()) |
42873e30 KL |
1895 | && (lCell.isBold() != lastAttr.isBold()) |
1896 | && (lCell.isReverse() != lastAttr.isReverse()) | |
1897 | && (lCell.isUnderline() != lastAttr.isUnderline()) | |
1898 | && (lCell.isBlink() != lastAttr.isBlink()) | |
1899 | ) { | |
1900 | // Everything is different | |
1901 | sb.append(color(lCell.getForeColor(), | |
1902 | lCell.getBackColor(), | |
1903 | lCell.isBold(), lCell.isReverse(), | |
1904 | lCell.isBlink(), | |
1905 | lCell.isUnderline())); | |
1906 | ||
1907 | if (debugToStderr) { | |
1908 | System.err.printf("2 Set all attributes\n"); | |
1909 | } | |
1910 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1911 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 | 1912 | && (!lCell.isRGB()) |
42873e30 KL |
1913 | && (lCell.isBold() == lastAttr.isBold()) |
1914 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1915 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1916 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1917 | ) { | |
1918 | ||
1919 | // Attributes same, foreColor different | |
1920 | sb.append(color(lCell.isBold(), | |
1921 | lCell.getForeColor(), true)); | |
1922 | ||
1923 | if (debugToStderr) { | |
1924 | System.err.printf("3 Change foreColor\n"); | |
1925 | } | |
051e2913 KL |
1926 | } else if (lCell.isRGB() |
1927 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1928 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
1929 | && (lCell.getForeColorRGB() >= 0) | |
1930 | && (lCell.getBackColorRGB() >= 0) | |
1931 | && (lCell.isBold() == lastAttr.isBold()) | |
1932 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1933 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1934 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1935 | ) { | |
1936 | // Attributes same, foreColor different | |
1937 | sb.append(colorRGB(lCell.getForeColorRGB(), true)); | |
1938 | ||
1939 | if (debugToStderr) { | |
1940 | System.err.printf("3 Change foreColor (RGB)\n"); | |
1941 | } | |
42873e30 KL |
1942 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1943 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1944 | && (!lCell.isRGB()) |
42873e30 KL |
1945 | && (lCell.isBold() == lastAttr.isBold()) |
1946 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1947 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1948 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1949 | ) { | |
1950 | // Attributes same, backColor different | |
1951 | sb.append(color(lCell.isBold(), | |
1952 | lCell.getBackColor(), false)); | |
1953 | ||
1954 | if (debugToStderr) { | |
1955 | System.err.printf("4 Change backColor\n"); | |
1956 | } | |
051e2913 KL |
1957 | } else if (lCell.isRGB() |
1958 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) | |
1959 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1960 | && (lCell.isBold() == lastAttr.isBold()) | |
1961 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1962 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1963 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1964 | ) { | |
1965 | // Attributes same, foreColor different | |
1966 | sb.append(colorRGB(lCell.getBackColorRGB(), false)); | |
1967 | ||
1968 | if (debugToStderr) { | |
1969 | System.err.printf("4 Change backColor (RGB)\n"); | |
1970 | } | |
42873e30 KL |
1971 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1972 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 KL |
1973 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) |
1974 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
42873e30 KL |
1975 | && (lCell.isBold() == lastAttr.isBold()) |
1976 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1977 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1978 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1979 | ) { | |
1980 | ||
1981 | // All attributes the same, just print the char | |
1982 | // NOP | |
1983 | ||
1984 | if (debugToStderr) { | |
1985 | System.err.printf("5 Only emit character\n"); | |
1986 | } | |
1987 | } else { | |
1988 | // Just reset everything again | |
051e2913 KL |
1989 | if (!lCell.isRGB()) { |
1990 | sb.append(color(lCell.getForeColor(), | |
1991 | lCell.getBackColor(), | |
1992 | lCell.isBold(), | |
1993 | lCell.isReverse(), | |
1994 | lCell.isBlink(), | |
1995 | lCell.isUnderline())); | |
1996 | ||
1997 | if (debugToStderr) { | |
1998 | System.err.printf("6 Change all attributes\n"); | |
1999 | } | |
2000 | } else { | |
2001 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
2002 | lCell.getBackColorRGB(), | |
2003 | lCell.isBold(), | |
2004 | lCell.isReverse(), | |
2005 | lCell.isBlink(), | |
2006 | lCell.isUnderline())); | |
2007 | if (debugToStderr) { | |
2008 | System.err.printf("6 Change all attributes (RGB)\n"); | |
2009 | } | |
42873e30 | 2010 | } |
051e2913 | 2011 | |
42873e30 KL |
2012 | } |
2013 | // Emit the character | |
772b8255 KL |
2014 | if (wideCharImages |
2015 | // Don't emit the right-half of full-width chars. | |
2016 | || (!wideCharImages | |
2017 | && (lCell.getWidth() != Cell.Width.RIGHT)) | |
2018 | ) { | |
2019 | sb.append(Character.toChars(lCell.getChar())); | |
2020 | } | |
42873e30 KL |
2021 | |
2022 | // Save the last rendered cell | |
2023 | lastX = x; | |
2024 | lastAttr.setTo(lCell); | |
2025 | ||
2026 | // Physical is always updated | |
2027 | physical[x][y].setTo(lCell); | |
2028 | ||
2029 | } // if (!lCell.equals(pCell) || (reallyCleared == true)) | |
2030 | ||
2031 | } // for (int x = 0; x < width; x++) | |
2032 | } | |
2033 | ||
2034 | /** | |
2035 | * Render the screen to a string that can be emitted to something that | |
2036 | * knows how to process ECMA-48/ANSI X3.64 escape sequences. | |
2037 | * | |
a69ed767 | 2038 | * @param sb StringBuilder to write escape sequences to |
42873e30 KL |
2039 | * @return escape sequences string that provides the updates to the |
2040 | * physical screen | |
2041 | */ | |
a69ed767 | 2042 | private String flushString(final StringBuilder sb) { |
42873e30 KL |
2043 | CellAttributes attr = null; |
2044 | ||
42873e30 KL |
2045 | if (reallyCleared) { |
2046 | attr = new CellAttributes(); | |
2047 | sb.append(clearAll()); | |
2048 | } | |
2049 | ||
a69ed767 | 2050 | /* |
9544763d | 2051 | * For images support, draw all of the image output first, and then |
a69ed767 KL |
2052 | * draw everything else afterwards. This works OK, but performance |
2053 | * is still a drag on larger pictures. | |
2054 | */ | |
2055 | for (int y = 0; y < height; y++) { | |
2056 | for (int x = 0; x < width; x++) { | |
2057 | // If physical had non-image data that is now image data, the | |
2058 | // entire row must be redrawn. | |
2059 | Cell lCell = logical[x][y]; | |
2060 | Cell pCell = physical[x][y]; | |
2061 | if (lCell.isImage() && !pCell.isImage()) { | |
2062 | unsetImageRow(y); | |
2063 | break; | |
2064 | } | |
2065 | } | |
2066 | } | |
2067 | for (int y = 0; y < height; y++) { | |
2068 | for (int x = 0; x < width; x++) { | |
2069 | Cell lCell = logical[x][y]; | |
2070 | Cell pCell = physical[x][y]; | |
2071 | ||
772b8255 KL |
2072 | if (!lCell.isImage() |
2073 | || (!wideCharImages | |
2074 | && (lCell.getWidth() != Cell.Width.SINGLE)) | |
2075 | ) { | |
a69ed767 KL |
2076 | continue; |
2077 | } | |
2078 | ||
2079 | int left = x; | |
2080 | int right = x; | |
2081 | while ((right < width) | |
2082 | && (logical[right][y].isImage()) | |
2083 | && (!logical[right][y].equals(physical[right][y]) | |
2084 | || reallyCleared) | |
2085 | ) { | |
2086 | right++; | |
2087 | } | |
2088 | ArrayList<Cell> cellsToDraw = new ArrayList<Cell>(); | |
2089 | for (int i = 0; i < (right - x); i++) { | |
2090 | assert (logical[x + i][y].isImage()); | |
2091 | cellsToDraw.add(logical[x + i][y]); | |
2092 | ||
2093 | // Physical is always updated. | |
2094 | physical[x + i][y].setTo(lCell); | |
2095 | } | |
2096 | if (cellsToDraw.size() > 0) { | |
9544763d KL |
2097 | if (iterm2Images) { |
2098 | sb.append(toIterm2Image(x, y, cellsToDraw)); | |
83787cfb | 2099 | } else if (jexerImageOption != JexerImageOption.DISABLED) { |
686d4da2 | 2100 | sb.append(toJexerImage(x, y, cellsToDraw)); |
9544763d KL |
2101 | } else { |
2102 | sb.append(toSixel(x, y, cellsToDraw)); | |
2103 | } | |
a69ed767 KL |
2104 | } |
2105 | ||
2106 | x = right; | |
2107 | } | |
2108 | } | |
2109 | ||
2110 | // Draw the text part now. | |
42873e30 KL |
2111 | for (int y = 0; y < height; y++) { |
2112 | flushLine(y, sb, attr); | |
2113 | } | |
2114 | ||
42873e30 KL |
2115 | reallyCleared = false; |
2116 | ||
2117 | String result = sb.toString(); | |
2118 | if (debugToStderr) { | |
2119 | System.err.printf("flushString(): %s\n", result); | |
2120 | } | |
2121 | return result; | |
2122 | } | |
2123 | ||
b1589621 | 2124 | /** |
7b5261bc | 2125 | * Reset keyboard/mouse input parser. |
b1589621 | 2126 | */ |
42873e30 | 2127 | private void resetParser() { |
7b5261bc KL |
2128 | state = ParseState.GROUND; |
2129 | params = new ArrayList<String>(); | |
7b5261bc KL |
2130 | params.clear(); |
2131 | params.add(""); | |
686d4da2 | 2132 | decPrivateModeFlag = false; |
b1589621 KL |
2133 | } |
2134 | ||
2135 | /** | |
2136 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 2137 | * etc.). |
b1589621 KL |
2138 | * |
2139 | * @param ch Unicode code point | |
b299e69c | 2140 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 2141 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
2142 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
2143 | * fnKey == ESC) | |
2144 | */ | |
b299e69c | 2145 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
2146 | // System.err.printf("controlChar: %02x\n", ch); |
2147 | ||
2148 | switch (ch) { | |
2149 | case 0x0D: | |
2150 | // Carriage return --> ENTER | |
b299e69c | 2151 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
2152 | case 0x0A: |
2153 | // Linefeed --> ENTER | |
b299e69c | 2154 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
2155 | case 0x1B: |
2156 | // ESC | |
b299e69c | 2157 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
2158 | case '\t': |
2159 | // TAB | |
b299e69c | 2160 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
2161 | default: |
2162 | // Make all other control characters come back as the alphabetic | |
2163 | // character with the ctrl field set. So SOH would be 'A' + | |
2164 | // ctrl. | |
b299e69c KL |
2165 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
2166 | alt, true, false); | |
7b5261bc | 2167 | } |
b1589621 KL |
2168 | } |
2169 | ||
2170 | /** | |
2171 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
2172 | * | |
2173 | * @return one KEYPRESS event representing a special key | |
2174 | */ | |
2175 | private TInputEvent csiFnKey() { | |
7b5261bc | 2176 | int key = 0; |
7b5261bc KL |
2177 | if (params.size() > 0) { |
2178 | key = Integer.parseInt(params.get(0)); | |
2179 | } | |
b299e69c KL |
2180 | boolean alt = false; |
2181 | boolean ctrl = false; | |
2182 | boolean shift = false; | |
32437017 KL |
2183 | if (params.size() > 1) { |
2184 | shift = csiIsShift(params.get(1)); | |
2185 | alt = csiIsAlt(params.get(1)); | |
2186 | ctrl = csiIsCtrl(params.get(1)); | |
b299e69c | 2187 | } |
d4a29741 | 2188 | |
b299e69c KL |
2189 | switch (key) { |
2190 | case 1: | |
2191 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
2192 | case 2: | |
2193 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
2194 | case 3: | |
2195 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
2196 | case 4: | |
2197 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
2198 | case 5: | |
2199 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
2200 | case 6: | |
2201 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
2202 | case 15: | |
2203 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
2204 | case 17: | |
2205 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
2206 | case 18: | |
2207 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
2208 | case 19: | |
2209 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
2210 | case 20: | |
2211 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
2212 | case 21: | |
2213 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
2214 | case 23: | |
2215 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
2216 | case 24: | |
2217 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
2218 | default: |
2219 | // Unknown | |
2220 | return null; | |
2221 | } | |
b1589621 KL |
2222 | } |
2223 | ||
2224 | /** | |
2225 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
2226 | * coordinates. See | |
2227 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2228 | * | |
2229 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2230 | */ | |
2231 | private TInputEvent parseMouse() { | |
7b5261bc KL |
2232 | int buttons = params.get(0).charAt(0) - 32; |
2233 | int x = params.get(0).charAt(1) - 32 - 1; | |
2234 | int y = params.get(0).charAt(2) - 32 - 1; | |
2235 | ||
2236 | // Clamp X and Y to the physical screen coordinates. | |
2237 | if (x >= windowResize.getWidth()) { | |
2238 | x = windowResize.getWidth() - 1; | |
2239 | } | |
2240 | if (y >= windowResize.getHeight()) { | |
2241 | y = windowResize.getHeight() - 1; | |
2242 | } | |
2243 | ||
d4a29741 KL |
2244 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
2245 | boolean eventMouse1 = false; | |
2246 | boolean eventMouse2 = false; | |
2247 | boolean eventMouse3 = false; | |
2248 | boolean eventMouseWheelUp = false; | |
2249 | boolean eventMouseWheelDown = false; | |
6e9daafb KL |
2250 | boolean eventAlt = false; |
2251 | boolean eventCtrl = false; | |
2252 | boolean eventShift = false; | |
7b5261bc KL |
2253 | |
2254 | // System.err.printf("buttons: %04x\r\n", buttons); | |
2255 | ||
6e9daafb | 2256 | switch (buttons & 0xE3) { |
7b5261bc | 2257 | case 0: |
d4a29741 | 2258 | eventMouse1 = true; |
7b5261bc KL |
2259 | mouse1 = true; |
2260 | break; | |
2261 | case 1: | |
d4a29741 | 2262 | eventMouse2 = true; |
7b5261bc KL |
2263 | mouse2 = true; |
2264 | break; | |
2265 | case 2: | |
d4a29741 | 2266 | eventMouse3 = true; |
7b5261bc KL |
2267 | mouse3 = true; |
2268 | break; | |
2269 | case 3: | |
2270 | // Release or Move | |
2271 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 2272 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 2273 | } else { |
d4a29741 | 2274 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
2275 | } |
2276 | if (mouse1) { | |
2277 | mouse1 = false; | |
d4a29741 | 2278 | eventMouse1 = true; |
7b5261bc KL |
2279 | } |
2280 | if (mouse2) { | |
2281 | mouse2 = false; | |
d4a29741 | 2282 | eventMouse2 = true; |
7b5261bc KL |
2283 | } |
2284 | if (mouse3) { | |
2285 | mouse3 = false; | |
d4a29741 | 2286 | eventMouse3 = true; |
7b5261bc KL |
2287 | } |
2288 | break; | |
2289 | ||
2290 | case 32: | |
2291 | // Dragging with mouse1 down | |
d4a29741 | 2292 | eventMouse1 = true; |
7b5261bc | 2293 | mouse1 = true; |
d4a29741 | 2294 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2295 | break; |
2296 | ||
2297 | case 33: | |
2298 | // Dragging with mouse2 down | |
d4a29741 | 2299 | eventMouse2 = true; |
7b5261bc | 2300 | mouse2 = true; |
d4a29741 | 2301 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2302 | break; |
2303 | ||
2304 | case 34: | |
2305 | // Dragging with mouse3 down | |
d4a29741 | 2306 | eventMouse3 = true; |
7b5261bc | 2307 | mouse3 = true; |
d4a29741 | 2308 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2309 | break; |
2310 | ||
2311 | case 96: | |
2312 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 2313 | eventMouse2 = true; |
7b5261bc | 2314 | mouse2 = true; |
d4a29741 | 2315 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2316 | break; |
2317 | ||
2318 | case 97: | |
2319 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 2320 | eventMouse2 = true; |
7b5261bc | 2321 | mouse2 = true; |
d4a29741 | 2322 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2323 | break; |
2324 | ||
2325 | case 64: | |
d4a29741 | 2326 | eventMouseWheelUp = true; |
7b5261bc KL |
2327 | break; |
2328 | ||
2329 | case 65: | |
d4a29741 | 2330 | eventMouseWheelDown = true; |
7b5261bc KL |
2331 | break; |
2332 | ||
2333 | default: | |
2334 | // Unknown, just make it motion | |
d4a29741 | 2335 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2336 | break; |
2337 | } | |
6e9daafb KL |
2338 | |
2339 | if ((buttons & 0x04) != 0) { | |
2340 | eventShift = true; | |
2341 | } | |
2342 | if ((buttons & 0x08) != 0) { | |
2343 | eventAlt = true; | |
2344 | } | |
2345 | if ((buttons & 0x10) != 0) { | |
2346 | eventCtrl = true; | |
2347 | } | |
2348 | ||
d4a29741 KL |
2349 | return new TMouseEvent(eventType, x, y, x, y, |
2350 | eventMouse1, eventMouse2, eventMouse3, | |
6e9daafb KL |
2351 | eventMouseWheelUp, eventMouseWheelDown, |
2352 | eventAlt, eventCtrl, eventShift); | |
b1589621 KL |
2353 | } |
2354 | ||
b5f2a6db KL |
2355 | /** |
2356 | * Produce mouse events based on "Any event tracking" and SGR | |
2357 | * coordinates. See | |
2358 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2359 | * | |
2360 | * @param release if true, this was a release ('m') | |
2361 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2362 | */ | |
2363 | private TInputEvent parseMouseSGR(final boolean release) { | |
2364 | // SGR extended coordinates - mode 1006 | |
2365 | if (params.size() < 3) { | |
2366 | // Invalid position, bail out. | |
2367 | return null; | |
2368 | } | |
2369 | int buttons = Integer.parseInt(params.get(0)); | |
2370 | int x = Integer.parseInt(params.get(1)) - 1; | |
2371 | int y = Integer.parseInt(params.get(2)) - 1; | |
2372 | ||
2373 | // Clamp X and Y to the physical screen coordinates. | |
2374 | if (x >= windowResize.getWidth()) { | |
2375 | x = windowResize.getWidth() - 1; | |
2376 | } | |
2377 | if (y >= windowResize.getHeight()) { | |
2378 | y = windowResize.getHeight() - 1; | |
2379 | } | |
2380 | ||
2381 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; | |
2382 | boolean eventMouse1 = false; | |
2383 | boolean eventMouse2 = false; | |
2384 | boolean eventMouse3 = false; | |
2385 | boolean eventMouseWheelUp = false; | |
2386 | boolean eventMouseWheelDown = false; | |
6e9daafb KL |
2387 | boolean eventAlt = false; |
2388 | boolean eventCtrl = false; | |
2389 | boolean eventShift = false; | |
b5f2a6db KL |
2390 | |
2391 | if (release) { | |
2392 | eventType = TMouseEvent.Type.MOUSE_UP; | |
2393 | } | |
2394 | ||
6e9daafb | 2395 | switch (buttons & 0xE3) { |
b5f2a6db KL |
2396 | case 0: |
2397 | eventMouse1 = true; | |
2398 | break; | |
2399 | case 1: | |
2400 | eventMouse2 = true; | |
2401 | break; | |
2402 | case 2: | |
2403 | eventMouse3 = true; | |
2404 | break; | |
2405 | case 35: | |
2406 | // Motion only, no buttons down | |
2407 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2408 | break; | |
2409 | ||
2410 | case 32: | |
2411 | // Dragging with mouse1 down | |
2412 | eventMouse1 = true; | |
2413 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2414 | break; | |
2415 | ||
2416 | case 33: | |
2417 | // Dragging with mouse2 down | |
2418 | eventMouse2 = true; | |
2419 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2420 | break; | |
2421 | ||
2422 | case 34: | |
2423 | // Dragging with mouse3 down | |
2424 | eventMouse3 = true; | |
2425 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2426 | break; | |
2427 | ||
2428 | case 96: | |
2429 | // Dragging with mouse2 down after wheelUp | |
2430 | eventMouse2 = true; | |
2431 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2432 | break; | |
2433 | ||
2434 | case 97: | |
2435 | // Dragging with mouse2 down after wheelDown | |
2436 | eventMouse2 = true; | |
2437 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2438 | break; | |
2439 | ||
2440 | case 64: | |
2441 | eventMouseWheelUp = true; | |
2442 | break; | |
2443 | ||
2444 | case 65: | |
2445 | eventMouseWheelDown = true; | |
2446 | break; | |
2447 | ||
2448 | default: | |
2449 | // Unknown, bail out | |
2450 | return null; | |
2451 | } | |
6e9daafb KL |
2452 | |
2453 | if ((buttons & 0x04) != 0) { | |
2454 | eventShift = true; | |
2455 | } | |
2456 | if ((buttons & 0x08) != 0) { | |
2457 | eventAlt = true; | |
2458 | } | |
2459 | if ((buttons & 0x10) != 0) { | |
2460 | eventCtrl = true; | |
2461 | } | |
2462 | ||
b5f2a6db KL |
2463 | return new TMouseEvent(eventType, x, y, x, y, |
2464 | eventMouse1, eventMouse2, eventMouse3, | |
6e9daafb KL |
2465 | eventMouseWheelUp, eventMouseWheelDown, |
2466 | eventAlt, eventCtrl, eventShift); | |
b5f2a6db KL |
2467 | } |
2468 | ||
05dbb28d | 2469 | /** |
623a1bd1 | 2470 | * Return any events in the IO queue due to timeout. |
b1589621 | 2471 | * |
623a1bd1 | 2472 | * @param queue list to append new events to |
b1589621 | 2473 | */ |
a83fea2b | 2474 | private void getIdleEvents(final List<TInputEvent> queue) { |
be72cb5c | 2475 | long nowTime = System.currentTimeMillis(); |
7b5261bc KL |
2476 | |
2477 | // Check for new window size | |
be72cb5c | 2478 | long windowSizeDelay = nowTime - windowSizeTime; |
a83fea2b | 2479 | if (windowSizeDelay > 1000) { |
9696a8f6 KL |
2480 | int oldTextWidth = getTextWidth(); |
2481 | int oldTextHeight = getTextHeight(); | |
2482 | ||
a83fea2b KL |
2483 | sessionInfo.queryWindowSize(); |
2484 | int newWidth = sessionInfo.getWindowWidth(); | |
2485 | int newHeight = sessionInfo.getWindowHeight(); | |
85c07c5e | 2486 | |
a83fea2b KL |
2487 | if ((newWidth != windowResize.getWidth()) |
2488 | || (newHeight != windowResize.getHeight()) | |
2489 | ) { | |
85c07c5e | 2490 | |
9696a8f6 KL |
2491 | // Request xterm report window dimensions in pixels again. |
2492 | // Between now and then, ensure that the reported text cell | |
2493 | // size is the same by setting widthPixels and heightPixels | |
2494 | // to match the new dimensions. | |
2495 | widthPixels = oldTextWidth * newWidth; | |
2496 | heightPixels = oldTextHeight * newHeight; | |
2497 | ||
85c07c5e KL |
2498 | if (debugToStderr) { |
2499 | System.err.println("Screen size changed, old size " + | |
2500 | windowResize); | |
2501 | System.err.println(" new size " + | |
2502 | newWidth + " x " + newHeight); | |
9696a8f6 KL |
2503 | System.err.println(" old pixels " + |
2504 | oldTextWidth + " x " + oldTextHeight); | |
2505 | System.err.println(" new pixels " + | |
2506 | getTextWidth() + " x " + getTextHeight()); | |
85c07c5e KL |
2507 | } |
2508 | ||
65462d0d | 2509 | this.output.printf("%s", xtermReportPixelDimensions()); |
a69ed767 KL |
2510 | this.output.flush(); |
2511 | ||
a83fea2b KL |
2512 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, |
2513 | newWidth, newHeight); | |
2514 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
2515 | newWidth, newHeight); | |
2516 | queue.add(event); | |
7b5261bc | 2517 | } |
be72cb5c | 2518 | windowSizeTime = nowTime; |
7b5261bc KL |
2519 | } |
2520 | ||
a83fea2b KL |
2521 | // ESCDELAY type timeout |
2522 | if (state == ParseState.ESCAPE) { | |
be72cb5c | 2523 | long escDelay = nowTime - escapeTime; |
a83fea2b KL |
2524 | if (escDelay > 100) { |
2525 | // After 0.1 seconds, assume a true escape character | |
2526 | queue.add(controlChar((char)0x1B, false)); | |
42873e30 | 2527 | resetParser(); |
7b5261bc KL |
2528 | } |
2529 | } | |
b1589621 KL |
2530 | } |
2531 | ||
32437017 KL |
2532 | /** |
2533 | * Returns true if the CSI parameter for a keyboard command means that | |
2534 | * shift was down. | |
2535 | */ | |
2536 | private boolean csiIsShift(final String x) { | |
2537 | if ((x.equals("2")) | |
2538 | || (x.equals("4")) | |
2539 | || (x.equals("6")) | |
2540 | || (x.equals("8")) | |
2541 | ) { | |
2542 | return true; | |
2543 | } | |
2544 | return false; | |
2545 | } | |
2546 | ||
2547 | /** | |
2548 | * Returns true if the CSI parameter for a keyboard command means that | |
2549 | * alt was down. | |
2550 | */ | |
2551 | private boolean csiIsAlt(final String x) { | |
2552 | if ((x.equals("3")) | |
2553 | || (x.equals("4")) | |
2554 | || (x.equals("7")) | |
2555 | || (x.equals("8")) | |
2556 | ) { | |
2557 | return true; | |
2558 | } | |
2559 | return false; | |
2560 | } | |
2561 | ||
2562 | /** | |
2563 | * Returns true if the CSI parameter for a keyboard command means that | |
2564 | * ctrl was down. | |
2565 | */ | |
2566 | private boolean csiIsCtrl(final String x) { | |
2567 | if ((x.equals("5")) | |
2568 | || (x.equals("6")) | |
2569 | || (x.equals("7")) | |
2570 | || (x.equals("8")) | |
2571 | ) { | |
2572 | return true; | |
2573 | } | |
2574 | return false; | |
2575 | } | |
2576 | ||
b1589621 KL |
2577 | /** |
2578 | * Parses the next character of input to see if an InputEvent is | |
2579 | * fully here. | |
2580 | * | |
623a1bd1 | 2581 | * @param events list to append new events to |
05dbb28d | 2582 | * @param ch Unicode code point |
b1589621 | 2583 | */ |
7b5261bc KL |
2584 | private void processChar(final List<TInputEvent> events, final char ch) { |
2585 | ||
7b5261bc | 2586 | // ESCDELAY type timeout |
be72cb5c | 2587 | long nowTime = System.currentTimeMillis(); |
7b5261bc | 2588 | if (state == ParseState.ESCAPE) { |
be72cb5c | 2589 | long escDelay = nowTime - escapeTime; |
7b5261bc KL |
2590 | if (escDelay > 250) { |
2591 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 2592 | events.add(controlChar((char)0x1B, false)); |
42873e30 | 2593 | resetParser(); |
7b5261bc KL |
2594 | } |
2595 | } | |
2596 | ||
b299e69c KL |
2597 | // TKeypress fields |
2598 | boolean ctrl = false; | |
2599 | boolean alt = false; | |
2600 | boolean shift = false; | |
b299e69c | 2601 | |
7b5261bc KL |
2602 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
2603 | ||
2604 | switch (state) { | |
2605 | case GROUND: | |
2606 | ||
2607 | if (ch == 0x1B) { | |
2608 | state = ParseState.ESCAPE; | |
be72cb5c | 2609 | escapeTime = nowTime; |
7b5261bc KL |
2610 | return; |
2611 | } | |
2612 | ||
2613 | if (ch <= 0x1F) { | |
2614 | // Control character | |
b299e69c | 2615 | events.add(controlChar(ch, false)); |
42873e30 | 2616 | resetParser(); |
7b5261bc KL |
2617 | return; |
2618 | } | |
2619 | ||
2620 | if (ch >= 0x20) { | |
2621 | // Normal character | |
b299e69c KL |
2622 | events.add(new TKeypressEvent(false, 0, ch, |
2623 | false, false, false)); | |
42873e30 | 2624 | resetParser(); |
7b5261bc KL |
2625 | return; |
2626 | } | |
2627 | ||
2628 | break; | |
2629 | ||
2630 | case ESCAPE: | |
2631 | if (ch <= 0x1F) { | |
2632 | // ALT-Control character | |
b299e69c | 2633 | events.add(controlChar(ch, true)); |
42873e30 | 2634 | resetParser(); |
7b5261bc KL |
2635 | return; |
2636 | } | |
2637 | ||
2638 | if (ch == 'O') { | |
2639 | // This will be one of the function keys | |
2640 | state = ParseState.ESCAPE_INTERMEDIATE; | |
2641 | return; | |
2642 | } | |
2643 | ||
2644 | // '[' goes to CSI_ENTRY | |
2645 | if (ch == '[') { | |
2646 | state = ParseState.CSI_ENTRY; | |
2647 | return; | |
2648 | } | |
2649 | ||
2650 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 2651 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 2652 | shift = true; |
7b5261bc | 2653 | } |
b299e69c KL |
2654 | alt = true; |
2655 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
42873e30 | 2656 | resetParser(); |
7b5261bc KL |
2657 | return; |
2658 | ||
2659 | case ESCAPE_INTERMEDIATE: | |
2660 | if ((ch >= 'P') && (ch <= 'S')) { | |
2661 | // Function key | |
7b5261bc KL |
2662 | switch (ch) { |
2663 | case 'P': | |
b299e69c | 2664 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
2665 | break; |
2666 | case 'Q': | |
b299e69c | 2667 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
2668 | break; |
2669 | case 'R': | |
b299e69c | 2670 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
2671 | break; |
2672 | case 'S': | |
b299e69c | 2673 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
2674 | break; |
2675 | default: | |
2676 | break; | |
2677 | } | |
42873e30 | 2678 | resetParser(); |
7b5261bc KL |
2679 | return; |
2680 | } | |
2681 | ||
2682 | // Unknown keystroke, ignore | |
42873e30 | 2683 | resetParser(); |
7b5261bc KL |
2684 | return; |
2685 | ||
2686 | case CSI_ENTRY: | |
2687 | // Numbers - parameter values | |
2688 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2689 | params.set(params.size() - 1, |
2690 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2691 | state = ParseState.CSI_PARAM; |
2692 | return; | |
2693 | } | |
2694 | // Parameter separator | |
2695 | if (ch == ';') { | |
a83fea2b | 2696 | params.add(""); |
7b5261bc KL |
2697 | return; |
2698 | } | |
2699 | ||
2700 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2701 | switch (ch) { | |
2702 | case 'A': | |
2703 | // Up | |
b299e69c | 2704 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2705 | resetParser(); |
7b5261bc KL |
2706 | return; |
2707 | case 'B': | |
2708 | // Down | |
b299e69c | 2709 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2710 | resetParser(); |
7b5261bc KL |
2711 | return; |
2712 | case 'C': | |
2713 | // Right | |
b299e69c | 2714 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2715 | resetParser(); |
7b5261bc KL |
2716 | return; |
2717 | case 'D': | |
2718 | // Left | |
b299e69c | 2719 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2720 | resetParser(); |
7b5261bc KL |
2721 | return; |
2722 | case 'H': | |
2723 | // Home | |
b299e69c | 2724 | events.add(new TKeypressEvent(kbHome)); |
42873e30 | 2725 | resetParser(); |
7b5261bc KL |
2726 | return; |
2727 | case 'F': | |
2728 | // End | |
b299e69c | 2729 | events.add(new TKeypressEvent(kbEnd)); |
42873e30 | 2730 | resetParser(); |
7b5261bc KL |
2731 | return; |
2732 | case 'Z': | |
2733 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 2734 | events.add(new TKeypressEvent(kbBackTab)); |
42873e30 | 2735 | resetParser(); |
7b5261bc KL |
2736 | return; |
2737 | case 'M': | |
2738 | // Mouse position | |
2739 | state = ParseState.MOUSE; | |
2740 | return; | |
b5f2a6db KL |
2741 | case '<': |
2742 | // Mouse position, SGR (1006) coordinates | |
2743 | state = ParseState.MOUSE_SGR; | |
2744 | return; | |
686d4da2 KL |
2745 | case '?': |
2746 | // DEC private mode flag | |
2747 | decPrivateModeFlag = true; | |
2748 | return; | |
7b5261bc KL |
2749 | default: |
2750 | break; | |
2751 | } | |
2752 | } | |
2753 | ||
2754 | // Unknown keystroke, ignore | |
42873e30 | 2755 | resetParser(); |
7b5261bc KL |
2756 | return; |
2757 | ||
b5f2a6db KL |
2758 | case MOUSE_SGR: |
2759 | // Numbers - parameter values | |
2760 | if ((ch >= '0') && (ch <= '9')) { | |
2761 | params.set(params.size() - 1, | |
2762 | params.get(params.size() - 1) + ch); | |
2763 | return; | |
2764 | } | |
2765 | // Parameter separator | |
2766 | if (ch == ';') { | |
2767 | params.add(""); | |
2768 | return; | |
2769 | } | |
2770 | ||
2771 | switch (ch) { | |
2772 | case 'M': | |
2773 | // Generate a mouse press event | |
2774 | TInputEvent event = parseMouseSGR(false); | |
2775 | if (event != null) { | |
2776 | events.add(event); | |
2777 | } | |
42873e30 | 2778 | resetParser(); |
b5f2a6db KL |
2779 | return; |
2780 | case 'm': | |
2781 | // Generate a mouse release event | |
2782 | event = parseMouseSGR(true); | |
2783 | if (event != null) { | |
2784 | events.add(event); | |
2785 | } | |
42873e30 | 2786 | resetParser(); |
b5f2a6db KL |
2787 | return; |
2788 | default: | |
2789 | break; | |
2790 | } | |
2791 | ||
2792 | // Unknown keystroke, ignore | |
42873e30 | 2793 | resetParser(); |
b5f2a6db KL |
2794 | return; |
2795 | ||
7b5261bc KL |
2796 | case CSI_PARAM: |
2797 | // Numbers - parameter values | |
2798 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2799 | params.set(params.size() - 1, |
2800 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2801 | state = ParseState.CSI_PARAM; |
2802 | return; | |
2803 | } | |
2804 | // Parameter separator | |
2805 | if (ch == ';') { | |
92554d64 | 2806 | params.add(""); |
7b5261bc KL |
2807 | return; |
2808 | } | |
2809 | ||
2810 | if (ch == '~') { | |
2811 | events.add(csiFnKey()); | |
42873e30 | 2812 | resetParser(); |
7b5261bc KL |
2813 | return; |
2814 | } | |
2815 | ||
2816 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2817 | switch (ch) { | |
2818 | case 'A': | |
2819 | // Up | |
7b5261bc | 2820 | if (params.size() > 1) { |
32437017 KL |
2821 | shift = csiIsShift(params.get(1)); |
2822 | alt = csiIsAlt(params.get(1)); | |
2823 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2824 | } |
b299e69c | 2825 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2826 | resetParser(); |
7b5261bc KL |
2827 | return; |
2828 | case 'B': | |
2829 | // Down | |
7b5261bc | 2830 | if (params.size() > 1) { |
32437017 KL |
2831 | shift = csiIsShift(params.get(1)); |
2832 | alt = csiIsAlt(params.get(1)); | |
2833 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2834 | } |
b299e69c | 2835 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2836 | resetParser(); |
7b5261bc KL |
2837 | return; |
2838 | case 'C': | |
2839 | // Right | |
7b5261bc | 2840 | if (params.size() > 1) { |
32437017 KL |
2841 | shift = csiIsShift(params.get(1)); |
2842 | alt = csiIsAlt(params.get(1)); | |
2843 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2844 | } |
b299e69c | 2845 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2846 | resetParser(); |
7b5261bc KL |
2847 | return; |
2848 | case 'D': | |
2849 | // Left | |
7b5261bc | 2850 | if (params.size() > 1) { |
32437017 KL |
2851 | shift = csiIsShift(params.get(1)); |
2852 | alt = csiIsAlt(params.get(1)); | |
2853 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2854 | } |
b299e69c | 2855 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2856 | resetParser(); |
7b5261bc | 2857 | return; |
32437017 KL |
2858 | case 'H': |
2859 | // Home | |
2860 | if (params.size() > 1) { | |
2861 | shift = csiIsShift(params.get(1)); | |
2862 | alt = csiIsAlt(params.get(1)); | |
2863 | ctrl = csiIsCtrl(params.get(1)); | |
2864 | } | |
2865 | events.add(new TKeypressEvent(kbHome, alt, ctrl, shift)); | |
42873e30 | 2866 | resetParser(); |
32437017 KL |
2867 | return; |
2868 | case 'F': | |
2869 | // End | |
2870 | if (params.size() > 1) { | |
2871 | shift = csiIsShift(params.get(1)); | |
2872 | alt = csiIsAlt(params.get(1)); | |
2873 | ctrl = csiIsCtrl(params.get(1)); | |
2874 | } | |
2875 | events.add(new TKeypressEvent(kbEnd, alt, ctrl, shift)); | |
42873e30 | 2876 | resetParser(); |
32437017 | 2877 | return; |
686d4da2 KL |
2878 | case 'c': |
2879 | // Device Attributes | |
2880 | if (decPrivateModeFlag == false) { | |
2881 | break; | |
2882 | } | |
83787cfb | 2883 | boolean jexerImages = false; |
686d4da2 KL |
2884 | for (String x: params) { |
2885 | if (x.equals("4")) { | |
2886 | // Terminal reports sixel support | |
2887 | if (debugToStderr) { | |
2888 | System.err.println("Device Attributes: sixel"); | |
2889 | } | |
2890 | } | |
2891 | if (x.equals("444")) { | |
2892 | // Terminal reports Jexer images support | |
2893 | if (debugToStderr) { | |
2894 | System.err.println("Device Attributes: Jexer images"); | |
2895 | } | |
2896 | jexerImages = true; | |
2897 | } | |
854cad3b KL |
2898 | if (x.equals("1337")) { |
2899 | // Terminal reports iTerm2 images support | |
2900 | if (debugToStderr) { | |
2901 | System.err.println("Device Attributes: iTerm2 images"); | |
2902 | } | |
2903 | iterm2Images = true; | |
2904 | } | |
686d4da2 | 2905 | } |
83787cfb KL |
2906 | if (jexerImages == false) { |
2907 | // Terminal does not support Jexer images, disable | |
2908 | // them. | |
2909 | jexerImageOption = JexerImageOption.DISABLED; | |
2910 | } | |
666048b6 | 2911 | resetParser(); |
686d4da2 | 2912 | return; |
a69ed767 KL |
2913 | case 't': |
2914 | // windowOps | |
2915 | if ((params.size() > 2) && (params.get(0).equals("4"))) { | |
2916 | if (debugToStderr) { | |
2917 | System.err.printf("windowOp pixels: " + | |
2918 | "height %s width %s\n", | |
2919 | params.get(1), params.get(2)); | |
2920 | } | |
2921 | try { | |
2922 | widthPixels = Integer.parseInt(params.get(2)); | |
2923 | heightPixels = Integer.parseInt(params.get(1)); | |
2924 | } catch (NumberFormatException e) { | |
2925 | if (debugToStderr) { | |
2926 | e.printStackTrace(); | |
2927 | } | |
2928 | } | |
2929 | if (widthPixels <= 0) { | |
2930 | widthPixels = 640; | |
2931 | } | |
2932 | if (heightPixels <= 0) { | |
2933 | heightPixels = 400; | |
2934 | } | |
2935 | } | |
739ada62 KL |
2936 | if ((params.size() > 2) && (params.get(0).equals("6"))) { |
2937 | if (debugToStderr) { | |
2938 | System.err.printf("windowOp text cell pixels: " + | |
2939 | "height %s width %s\n", | |
2940 | params.get(1), params.get(2)); | |
2941 | } | |
2942 | try { | |
2943 | widthPixels = width * Integer.parseInt(params.get(2)); | |
2944 | heightPixels = height * Integer.parseInt(params.get(1)); | |
2945 | } catch (NumberFormatException e) { | |
2946 | if (debugToStderr) { | |
2947 | e.printStackTrace(); | |
2948 | } | |
2949 | } | |
2950 | if (widthPixels <= 0) { | |
2951 | widthPixels = 640; | |
2952 | } | |
2953 | if (heightPixels <= 0) { | |
2954 | heightPixels = 400; | |
2955 | } | |
2956 | } | |
a69ed767 KL |
2957 | resetParser(); |
2958 | return; | |
7b5261bc KL |
2959 | default: |
2960 | break; | |
2961 | } | |
2962 | } | |
2963 | ||
2964 | // Unknown keystroke, ignore | |
42873e30 | 2965 | resetParser(); |
7b5261bc KL |
2966 | return; |
2967 | ||
2968 | case MOUSE: | |
92554d64 | 2969 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
2970 | if (params.get(0).length() == 3) { |
2971 | // We have enough to generate a mouse event | |
2972 | events.add(parseMouse()); | |
42873e30 | 2973 | resetParser(); |
7b5261bc KL |
2974 | } |
2975 | return; | |
2976 | ||
2977 | default: | |
2978 | break; | |
2979 | } | |
2980 | ||
2981 | // This "should" be impossible to reach | |
2982 | return; | |
b1589621 KL |
2983 | } |
2984 | ||
a69ed767 | 2985 | /** |
65462d0d KL |
2986 | * Request (u)xterm to use the sixel settings we need: |
2987 | * | |
2988 | * - enable sixel scrolling | |
2989 | * | |
2990 | * - disable private color registers (so that we can use one common | |
1db1bc02 | 2991 | * palette) if sixelSharedPalette is set |
65462d0d KL |
2992 | * |
2993 | * @return the string to emit to xterm | |
2994 | */ | |
2995 | private String xtermSetSixelSettings() { | |
1db1bc02 KL |
2996 | if (sixelSharedPalette == true) { |
2997 | return "\033[?80h\033[?1070l"; | |
2998 | } else { | |
2999 | return "\033[?80h\033[?1070h"; | |
3000 | } | |
65462d0d KL |
3001 | } |
3002 | ||
3003 | /** | |
3004 | * Restore (u)xterm its default sixel settings: | |
3005 | * | |
3006 | * - enable sixel scrolling | |
3007 | * | |
3008 | * - enable private color registers | |
a69ed767 KL |
3009 | * |
3010 | * @return the string to emit to xterm | |
3011 | */ | |
65462d0d KL |
3012 | private String xtermResetSixelSettings() { |
3013 | return "\033[?80h\033[?1070h"; | |
3014 | } | |
3015 | ||
3016 | /** | |
3017 | * Request (u)xterm to report the current window and cell size dimensions | |
3018 | * in pixels. | |
3019 | * | |
3020 | * @return the string to emit to xterm | |
3021 | */ | |
3022 | private String xtermReportPixelDimensions() { | |
739ada62 KL |
3023 | // We will ask for both window and text cell dimensions, and |
3024 | // hopefully one of them will work. | |
3025 | return "\033[14t\033[16t"; | |
a69ed767 KL |
3026 | } |
3027 | ||
b1589621 | 3028 | /** |
05dbb28d KL |
3029 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
3030 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
3031 | * enabled. | |
b1589621 | 3032 | * |
05dbb28d KL |
3033 | * @param on if true, enable metaSendsEscape |
3034 | * @return the string to emit to xterm | |
b1589621 | 3035 | */ |
b5f2a6db | 3036 | private String xtermMetaSendsEscape(final boolean on) { |
7b5261bc KL |
3037 | if (on) { |
3038 | return "\033[?1036h\033[?1034l"; | |
3039 | } | |
3040 | return "\033[?1036l"; | |
b1589621 KL |
3041 | } |
3042 | ||
55d2b2c2 | 3043 | /** |
42873e30 | 3044 | * Create an xterm OSC sequence to change the window title. |
55d2b2c2 KL |
3045 | * |
3046 | * @param title the new title | |
3047 | * @return the string to emit to xterm | |
3048 | */ | |
42873e30 | 3049 | private String getSetTitleString(final String title) { |
55d2b2c2 KL |
3050 | return "\033]2;" + title + "\007"; |
3051 | } | |
3052 | ||
a69ed767 KL |
3053 | // ------------------------------------------------------------------------ |
3054 | // Sixel output support --------------------------------------------------- | |
3055 | // ------------------------------------------------------------------------ | |
3056 | ||
a75902fa KL |
3057 | /** |
3058 | * Get the number of colors in the sixel palette. | |
3059 | * | |
3060 | * @return the palette size | |
3061 | */ | |
3062 | public int getSixelPaletteSize() { | |
3063 | return sixelPaletteSize; | |
3064 | } | |
3065 | ||
3066 | /** | |
3067 | * Set the number of colors in the sixel palette. | |
3068 | * | |
3069 | * @param paletteSize the new palette size | |
3070 | */ | |
3071 | public void setSixelPaletteSize(final int paletteSize) { | |
3072 | if (paletteSize == sixelPaletteSize) { | |
3073 | return; | |
3074 | } | |
3075 | ||
3076 | switch (paletteSize) { | |
3077 | case 2: | |
3078 | case 256: | |
3079 | case 512: | |
3080 | case 1024: | |
3081 | case 2048: | |
3082 | break; | |
3083 | default: | |
3084 | throw new IllegalArgumentException("Unsupported sixel palette " + | |
3085 | " size: " + paletteSize); | |
3086 | } | |
3087 | ||
3088 | // Don't step on the screen refresh thread. | |
3089 | synchronized (this) { | |
3090 | sixelPaletteSize = paletteSize; | |
3091 | palette = null; | |
3092 | sixelCache = null; | |
3093 | clearPhysical(); | |
3094 | } | |
3095 | } | |
3096 | ||
a69ed767 KL |
3097 | /** |
3098 | * Start a sixel string for display one row's worth of bitmap data. | |
3099 | * | |
3100 | * @param x column coordinate. 0 is the left-most column. | |
3101 | * @param y row coordinate. 0 is the top-most row. | |
3102 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3103 | */ | |
3104 | private String startSixel(final int x, final int y) { | |
3105 | StringBuilder sb = new StringBuilder(); | |
3106 | ||
3107 | assert (sixel == true); | |
3108 | ||
3109 | // Place the cursor | |
3110 | sb.append(gotoXY(x, y)); | |
3111 | ||
3112 | // DCS | |
3113 | sb.append("\033Pq"); | |
3114 | ||
3115 | if (palette == null) { | |
3116 | palette = new SixelPalette(); | |
1db1bc02 KL |
3117 | if (sixelSharedPalette == true) { |
3118 | palette.emitPalette(sb, null); | |
3119 | } | |
a69ed767 KL |
3120 | } |
3121 | ||
3122 | return sb.toString(); | |
3123 | } | |
3124 | ||
3125 | /** | |
3126 | * End a sixel string for display one row's worth of bitmap data. | |
3127 | * | |
3128 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3129 | */ | |
3130 | private String endSixel() { | |
3131 | assert (sixel == true); | |
3132 | ||
3133 | // ST | |
3134 | return ("\033\\"); | |
3135 | } | |
3136 | ||
3137 | /** | |
3138 | * Create a sixel string representing a row of several cells containing | |
3139 | * bitmap data. | |
3140 | * | |
3141 | * @param x column coordinate. 0 is the left-most column. | |
3142 | * @param y row coordinate. 0 is the top-most row. | |
3143 | * @param cells the cells containing the bitmap data | |
3144 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3145 | */ | |
3146 | private String toSixel(final int x, final int y, | |
3147 | final ArrayList<Cell> cells) { | |
3148 | ||
3149 | StringBuilder sb = new StringBuilder(); | |
3150 | ||
a69ed767 KL |
3151 | assert (cells != null); |
3152 | assert (cells.size() > 0); | |
3153 | assert (cells.get(0).getImage() != null); | |
3154 | ||
e23ea538 KL |
3155 | if (sixel == false) { |
3156 | sb.append(normal()); | |
3157 | sb.append(gotoXY(x, y)); | |
3158 | for (int i = 0; i < cells.size(); i++) { | |
3159 | sb.append(' '); | |
3160 | } | |
3161 | return sb.toString(); | |
3162 | } | |
3163 | ||
65462d0d KL |
3164 | if (y == height - 1) { |
3165 | // We are on the bottom row. If scrolling mode is enabled | |
3166 | // (default), then VT320/xterm will scroll the entire screen if | |
1db1bc02 KL |
3167 | // we draw any pixels here. Do not draw the image, bail out |
3168 | // instead. | |
65462d0d KL |
3169 | sb.append(normal()); |
3170 | sb.append(gotoXY(x, y)); | |
3171 | for (int j = 0; j < cells.size(); j++) { | |
3172 | sb.append(' '); | |
3173 | } | |
3174 | return sb.toString(); | |
3175 | } | |
3176 | ||
a69ed767 | 3177 | if (sixelCache == null) { |
9544763d | 3178 | sixelCache = new ImageCache(height * 10); |
a69ed767 KL |
3179 | } |
3180 | ||
3181 | // Save and get rows to/from the cache that do NOT have inverted | |
3182 | // cells. | |
3183 | boolean saveInCache = true; | |
3184 | for (Cell cell: cells) { | |
3185 | if (cell.isInvertedImage()) { | |
3186 | saveInCache = false; | |
3187 | } | |
3188 | } | |
3189 | if (saveInCache) { | |
3190 | String cachedResult = sixelCache.get(cells); | |
3191 | if (cachedResult != null) { | |
3192 | // System.err.println("CACHE HIT"); | |
3193 | sb.append(startSixel(x, y)); | |
3194 | sb.append(cachedResult); | |
3195 | sb.append(endSixel()); | |
3196 | return sb.toString(); | |
3197 | } | |
3198 | // System.err.println("CACHE MISS"); | |
3199 | } | |
3200 | ||
3201 | int imageWidth = cells.get(0).getImage().getWidth(); | |
3202 | int imageHeight = cells.get(0).getImage().getHeight(); | |
3203 | ||
b73fc652 | 3204 | // Piece these together into one larger image for final rendering. |
a69ed767 | 3205 | int totalWidth = 0; |
b73fc652 KL |
3206 | int fullWidth = cells.size() * imageWidth; |
3207 | int fullHeight = imageHeight; | |
a69ed767 KL |
3208 | for (int i = 0; i < cells.size(); i++) { |
3209 | totalWidth += cells.get(i).getImage().getWidth(); | |
3210 | } | |
3211 | ||
3212 | BufferedImage image = new BufferedImage(fullWidth, | |
3213 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
3214 | ||
3215 | int [] rgbArray; | |
3216 | for (int i = 0; i < cells.size() - 1; i++) { | |
b73fc652 KL |
3217 | int tileWidth = imageWidth; |
3218 | int tileHeight = imageHeight; | |
65462d0d | 3219 | |
3af53a35 KL |
3220 | if (false && cells.get(i).isInvertedImage()) { |
3221 | // I used to put an all-white cell over the cursor, don't do | |
3222 | // that anymore. | |
a69ed767 KL |
3223 | rgbArray = new int[imageWidth * imageHeight]; |
3224 | for (int j = 0; j < rgbArray.length; j++) { | |
3225 | rgbArray[j] = 0xFFFFFF; | |
3226 | } | |
3227 | } else { | |
ceee6bca KL |
3228 | try { |
3229 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
3230 | tileWidth, tileHeight, null, 0, tileWidth); | |
3231 | } catch (Exception e) { | |
3232 | throw new RuntimeException("image " + imageWidth + "x" + | |
3233 | imageHeight + | |
3234 | "tile " + tileWidth + "x" + | |
3235 | tileHeight + | |
3236 | " cells.get(i).getImage() " + | |
3237 | cells.get(i).getImage() + | |
3238 | " i " + i + | |
3239 | " fullWidth " + fullWidth + | |
3240 | " fullHeight " + fullHeight, e); | |
3241 | } | |
a69ed767 | 3242 | } |
9696a8f6 KL |
3243 | |
3244 | /* | |
3245 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
3246 | i * imageWidth, 0, imageWidth, imageHeight, | |
3247 | 0, imageWidth); | |
3248 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
3249 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
3250 | */ | |
3251 | ||
ceee6bca KL |
3252 | image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, |
3253 | rgbArray, 0, tileWidth); | |
3254 | if (tileHeight < fullHeight) { | |
a69ed767 KL |
3255 | int backgroundColor = cells.get(i).getBackground().getRGB(); |
3256 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3257 | for (int imageY = imageHeight; imageY < fullHeight; | |
3258 | imageY++) { | |
3259 | ||
3260 | image.setRGB(imageX, imageY, backgroundColor); | |
3261 | } | |
3262 | } | |
3263 | } | |
3264 | } | |
3265 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
3af53a35 KL |
3266 | if (false && cells.get(cells.size() - 1).isInvertedImage()) { |
3267 | // I used to put an all-white cell over the cursor, don't do that | |
3268 | // anymore. | |
a69ed767 KL |
3269 | rgbArray = new int[totalWidth * imageHeight]; |
3270 | for (int j = 0; j < rgbArray.length; j++) { | |
3271 | rgbArray[j] = 0xFFFFFF; | |
3272 | } | |
3273 | } else { | |
ceee6bca KL |
3274 | try { |
3275 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
3276 | totalWidth, imageHeight, null, 0, totalWidth); | |
3277 | } catch (Exception e) { | |
3278 | throw new RuntimeException("image " + imageWidth + "x" + | |
3279 | imageHeight + " cells.get(cells.size() - 1).getImage() " + | |
3280 | cells.get(cells.size() - 1).getImage(), e); | |
3281 | } | |
a69ed767 KL |
3282 | } |
3283 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
3284 | imageHeight, rgbArray, 0, totalWidth); | |
3285 | ||
b73fc652 | 3286 | if (totalWidth < imageWidth) { |
a69ed767 KL |
3287 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); |
3288 | ||
3289 | for (int imageX = image.getWidth() - totalWidth; | |
3290 | imageX < image.getWidth(); imageX++) { | |
3291 | ||
3292 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
3293 | image.setRGB(imageX, imageY, backgroundColor); | |
3294 | } | |
3295 | } | |
3296 | } | |
3297 | ||
b73fc652 KL |
3298 | if ((image.getWidth() != cells.size() * getTextWidth()) |
3299 | || (image.getHeight() != getTextHeight()) | |
3300 | ) { | |
3301 | // Rescale the image to fit the text cells it is going into. | |
3302 | BufferedImage newImage; | |
3303 | newImage = new BufferedImage(cells.size() * getTextWidth(), | |
3304 | getTextHeight(), BufferedImage.TYPE_INT_ARGB); | |
3305 | ||
7ed28054 KL |
3306 | Graphics gr = newImage.getGraphics(); |
3307 | if (gr instanceof Graphics2D) { | |
3308 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_ANTIALIASING, | |
3309 | RenderingHints.VALUE_ANTIALIAS_ON); | |
3310 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_RENDERING, | |
3311 | RenderingHints.VALUE_RENDER_QUALITY); | |
3312 | } | |
b73fc652 KL |
3313 | gr.drawImage(image, 0, 0, newImage.getWidth(), |
3314 | newImage.getHeight(), null, null); | |
3315 | gr.dispose(); | |
3316 | image = newImage; | |
3317 | fullHeight = image.getHeight(); | |
3318 | } | |
3319 | ||
a69ed767 KL |
3320 | // Dither the image. It is ok to lose the original here. |
3321 | if (palette == null) { | |
3322 | palette = new SixelPalette(); | |
1db1bc02 KL |
3323 | if (sixelSharedPalette == true) { |
3324 | palette.emitPalette(sb, null); | |
3325 | } | |
a69ed767 KL |
3326 | } |
3327 | image = palette.ditherImage(image); | |
3328 | ||
741b75d7 KL |
3329 | // Collect the raster information |
3330 | int rasterHeight = 0; | |
3331 | int rasterWidth = image.getWidth(); | |
3332 | ||
1db1bc02 KL |
3333 | if (sixelSharedPalette == false) { |
3334 | // Emit the palette, but only for the colors actually used by | |
3335 | // these cells. | |
3336 | boolean [] usedColors = new boolean[sixelPaletteSize]; | |
3337 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3338 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
3339 | usedColors[image.getRGB(imageX, imageY)] = true; | |
3340 | } | |
a69ed767 | 3341 | } |
1db1bc02 | 3342 | palette.emitPalette(sb, usedColors); |
a69ed767 | 3343 | } |
a69ed767 KL |
3344 | |
3345 | // Render the entire row of cells. | |
3346 | for (int currentRow = 0; currentRow < fullHeight; currentRow += 6) { | |
3347 | int [][] sixels = new int[image.getWidth()][6]; | |
3348 | ||
3349 | // See which colors are actually used in this band of sixels. | |
3350 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3351 | for (int imageY = 0; | |
3352 | (imageY < 6) && (imageY + currentRow < fullHeight); | |
3353 | imageY++) { | |
3354 | ||
3355 | int colorIdx = image.getRGB(imageX, imageY + currentRow); | |
3356 | assert (colorIdx >= 0); | |
a75902fa | 3357 | assert (colorIdx < sixelPaletteSize); |
a69ed767 KL |
3358 | |
3359 | sixels[imageX][imageY] = colorIdx; | |
3360 | } | |
3361 | } | |
3362 | ||
a75902fa | 3363 | for (int i = 0; i < sixelPaletteSize; i++) { |
a69ed767 KL |
3364 | boolean isUsed = false; |
3365 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3366 | for (int j = 0; j < 6; j++) { | |
3367 | if (sixels[imageX][j] == i) { | |
3368 | isUsed = true; | |
3369 | } | |
3370 | } | |
3371 | } | |
3372 | if (isUsed == false) { | |
3373 | continue; | |
3374 | } | |
3375 | ||
3376 | // Set to the beginning of scan line for the next set of | |
3377 | // colored pixels, and select the color. | |
3378 | sb.append(String.format("$#%d", i)); | |
3379 | ||
fa535516 KL |
3380 | int oldData = -1; |
3381 | int oldDataCount = 0; | |
a69ed767 KL |
3382 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { |
3383 | ||
3384 | // Add up all the pixels that match this color. | |
3385 | int data = 0; | |
3386 | for (int j = 0; | |
3387 | (j < 6) && (currentRow + j < fullHeight); | |
3388 | j++) { | |
3389 | ||
3390 | if (sixels[imageX][j] == i) { | |
3391 | switch (j) { | |
3392 | case 0: | |
3393 | data += 1; | |
3394 | break; | |
3395 | case 1: | |
3396 | data += 2; | |
3397 | break; | |
3398 | case 2: | |
3399 | data += 4; | |
3400 | break; | |
3401 | case 3: | |
3402 | data += 8; | |
3403 | break; | |
3404 | case 4: | |
3405 | data += 16; | |
3406 | break; | |
3407 | case 5: | |
3408 | data += 32; | |
3409 | break; | |
3410 | } | |
741b75d7 KL |
3411 | if ((currentRow + j + 1) > rasterHeight) { |
3412 | rasterHeight = currentRow + j + 1; | |
3413 | } | |
a69ed767 KL |
3414 | } |
3415 | } | |
3416 | assert (data >= 0); | |
fa535516 | 3417 | assert (data < 64); |
a69ed767 | 3418 | data += 63; |
e6469faa | 3419 | |
fa535516 KL |
3420 | if (data == oldData) { |
3421 | oldDataCount++; | |
3422 | } else { | |
3423 | if (oldDataCount == 1) { | |
3424 | sb.append((char) oldData); | |
3425 | } else if (oldDataCount > 1) { | |
3426 | sb.append(String.format("!%d", oldDataCount)); | |
3427 | sb.append((char) oldData); | |
3428 | } | |
3429 | oldDataCount = 1; | |
3430 | oldData = data; | |
3431 | } | |
e6469faa | 3432 | |
a69ed767 | 3433 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) |
fa535516 KL |
3434 | |
3435 | // Emit the last sequence. | |
3436 | if (oldDataCount == 1) { | |
3437 | sb.append((char) oldData); | |
3438 | } else if (oldDataCount > 1) { | |
3439 | sb.append(String.format("!%d", oldDataCount)); | |
3440 | sb.append((char) oldData); | |
3441 | } | |
3442 | ||
a75902fa | 3443 | } // for (int i = 0; i < sixelPaletteSize; i++) |
a69ed767 KL |
3444 | |
3445 | // Advance to the next scan line. | |
3446 | sb.append("-"); | |
3447 | ||
3448 | } // for (int currentRow = 0; currentRow < imageHeight; currentRow += 6) | |
3449 | ||
3450 | // Kill the very last "-", because it is unnecessary. | |
3451 | sb.deleteCharAt(sb.length() - 1); | |
3452 | ||
741b75d7 KL |
3453 | // Add the raster information |
3454 | sb.insert(0, String.format("\"1;1;%d;%d", rasterWidth, rasterHeight)); | |
3455 | ||
a69ed767 KL |
3456 | if (saveInCache) { |
3457 | // This row is OK to save into the cache. | |
3458 | sixelCache.put(cells, sb.toString()); | |
3459 | } | |
3460 | ||
3461 | return (startSixel(x, y) + sb.toString() + endSixel()); | |
3462 | } | |
3463 | ||
5fc7bf09 KL |
3464 | /** |
3465 | * Get the sixel support flag. | |
3466 | * | |
3467 | * @return true if this terminal is emitting sixel | |
3468 | */ | |
3469 | public boolean hasSixel() { | |
3470 | return sixel; | |
3471 | } | |
3472 | ||
a69ed767 KL |
3473 | // ------------------------------------------------------------------------ |
3474 | // End sixel output support ----------------------------------------------- | |
3475 | // ------------------------------------------------------------------------ | |
9544763d KL |
3476 | |
3477 | // ------------------------------------------------------------------------ | |
3478 | // iTerm2 image output support -------------------------------------------- | |
3479 | // ------------------------------------------------------------------------ | |
3480 | ||
3481 | /** | |
3482 | * Create an iTerm2 images string representing a row of several cells | |
3483 | * containing bitmap data. | |
3484 | * | |
3485 | * @param x column coordinate. 0 is the left-most column. | |
3486 | * @param y row coordinate. 0 is the top-most row. | |
3487 | * @param cells the cells containing the bitmap data | |
3488 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3489 | */ | |
3490 | private String toIterm2Image(final int x, final int y, | |
3491 | final ArrayList<Cell> cells) { | |
3492 | ||
3493 | StringBuilder sb = new StringBuilder(); | |
3494 | ||
3495 | assert (cells != null); | |
3496 | assert (cells.size() > 0); | |
3497 | assert (cells.get(0).getImage() != null); | |
3498 | ||
3499 | if (iterm2Images == false) { | |
3500 | sb.append(normal()); | |
3501 | sb.append(gotoXY(x, y)); | |
3502 | for (int i = 0; i < cells.size(); i++) { | |
3503 | sb.append(' '); | |
3504 | } | |
3505 | return sb.toString(); | |
3506 | } | |
3507 | ||
3508 | if (iterm2Cache == null) { | |
3509 | iterm2Cache = new ImageCache(height * 10); | |
9544763d KL |
3510 | } |
3511 | ||
3512 | // Save and get rows to/from the cache that do NOT have inverted | |
3513 | // cells. | |
3514 | boolean saveInCache = true; | |
3515 | for (Cell cell: cells) { | |
3516 | if (cell.isInvertedImage()) { | |
3517 | saveInCache = false; | |
3518 | } | |
3519 | } | |
3520 | if (saveInCache) { | |
3521 | String cachedResult = iterm2Cache.get(cells); | |
3522 | if (cachedResult != null) { | |
3523 | // System.err.println("CACHE HIT"); | |
3524 | sb.append(gotoXY(x, y)); | |
3525 | sb.append(cachedResult); | |
3526 | return sb.toString(); | |
3527 | } | |
3528 | // System.err.println("CACHE MISS"); | |
3529 | } | |
3530 | ||
3531 | int imageWidth = cells.get(0).getImage().getWidth(); | |
3532 | int imageHeight = cells.get(0).getImage().getHeight(); | |
3533 | ||
83787cfb | 3534 | // Piece cells.get(x).getImage() pieces together into one larger |
9544763d KL |
3535 | // image for final rendering. |
3536 | int totalWidth = 0; | |
b73fc652 KL |
3537 | int fullWidth = cells.size() * imageWidth; |
3538 | int fullHeight = imageHeight; | |
9544763d KL |
3539 | for (int i = 0; i < cells.size(); i++) { |
3540 | totalWidth += cells.get(i).getImage().getWidth(); | |
3541 | } | |
3542 | ||
3543 | BufferedImage image = new BufferedImage(fullWidth, | |
3544 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
3545 | ||
3546 | int [] rgbArray; | |
3547 | for (int i = 0; i < cells.size() - 1; i++) { | |
b73fc652 KL |
3548 | int tileWidth = imageWidth; |
3549 | int tileHeight = imageHeight; | |
9544763d KL |
3550 | if (false && cells.get(i).isInvertedImage()) { |
3551 | // I used to put an all-white cell over the cursor, don't do | |
3552 | // that anymore. | |
3553 | rgbArray = new int[imageWidth * imageHeight]; | |
3554 | for (int j = 0; j < rgbArray.length; j++) { | |
3555 | rgbArray[j] = 0xFFFFFF; | |
3556 | } | |
3557 | } else { | |
3558 | try { | |
3559 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
3560 | tileWidth, tileHeight, null, 0, tileWidth); | |
3561 | } catch (Exception e) { | |
3562 | throw new RuntimeException("image " + imageWidth + "x" + | |
3563 | imageHeight + | |
3564 | "tile " + tileWidth + "x" + | |
3565 | tileHeight + | |
3566 | " cells.get(i).getImage() " + | |
3567 | cells.get(i).getImage() + | |
3568 | " i " + i + | |
3569 | " fullWidth " + fullWidth + | |
3570 | " fullHeight " + fullHeight, e); | |
3571 | } | |
3572 | } | |
3573 | ||
3574 | /* | |
3575 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
3576 | i * imageWidth, 0, imageWidth, imageHeight, | |
3577 | 0, imageWidth); | |
3578 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
3579 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
3580 | */ | |
3581 | ||
3582 | image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, | |
3583 | rgbArray, 0, tileWidth); | |
3584 | if (tileHeight < fullHeight) { | |
3585 | int backgroundColor = cells.get(i).getBackground().getRGB(); | |
3586 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3587 | for (int imageY = imageHeight; imageY < fullHeight; | |
3588 | imageY++) { | |
3589 | ||
3590 | image.setRGB(imageX, imageY, backgroundColor); | |
3591 | } | |
3592 | } | |
3593 | } | |
3594 | } | |
3595 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
3596 | if (false && cells.get(cells.size() - 1).isInvertedImage()) { | |
3597 | // I used to put an all-white cell over the cursor, don't do that | |
3598 | // anymore. | |
3599 | rgbArray = new int[totalWidth * imageHeight]; | |
3600 | for (int j = 0; j < rgbArray.length; j++) { | |
3601 | rgbArray[j] = 0xFFFFFF; | |
3602 | } | |
3603 | } else { | |
3604 | try { | |
3605 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
3606 | totalWidth, imageHeight, null, 0, totalWidth); | |
3607 | } catch (Exception e) { | |
3608 | throw new RuntimeException("image " + imageWidth + "x" + | |
3609 | imageHeight + " cells.get(cells.size() - 1).getImage() " + | |
3610 | cells.get(cells.size() - 1).getImage(), e); | |
3611 | } | |
3612 | } | |
3613 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
3614 | imageHeight, rgbArray, 0, totalWidth); | |
3615 | ||
b73fc652 | 3616 | if (totalWidth < imageWidth) { |
9544763d KL |
3617 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); |
3618 | ||
3619 | for (int imageX = image.getWidth() - totalWidth; | |
3620 | imageX < image.getWidth(); imageX++) { | |
3621 | ||
3622 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
3623 | image.setRGB(imageX, imageY, backgroundColor); | |
3624 | } | |
3625 | } | |
3626 | } | |
3627 | ||
b73fc652 KL |
3628 | if ((image.getWidth() != cells.size() * getTextWidth()) |
3629 | || (image.getHeight() != getTextHeight()) | |
3630 | ) { | |
3631 | // Rescale the image to fit the text cells it is going into. | |
3632 | BufferedImage newImage; | |
3633 | newImage = new BufferedImage(cells.size() * getTextWidth(), | |
3634 | getTextHeight(), BufferedImage.TYPE_INT_ARGB); | |
3635 | ||
7ed28054 KL |
3636 | Graphics gr = newImage.getGraphics(); |
3637 | if (gr instanceof Graphics2D) { | |
3638 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_ANTIALIASING, | |
3639 | RenderingHints.VALUE_ANTIALIAS_ON); | |
3640 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_RENDERING, | |
3641 | RenderingHints.VALUE_RENDER_QUALITY); | |
3642 | } | |
b73fc652 KL |
3643 | gr.drawImage(image, 0, 0, newImage.getWidth(), |
3644 | newImage.getHeight(), null, null); | |
3645 | gr.dispose(); | |
3646 | image = newImage; | |
3647 | fullHeight = image.getHeight(); | |
3648 | } | |
3649 | ||
9544763d KL |
3650 | /* |
3651 | * From https://iterm2.com/documentation-images.html: | |
3652 | * | |
3653 | * Protocol | |
3654 | * | |
3655 | * iTerm2 extends the xterm protocol with a set of proprietary escape | |
3656 | * sequences. In general, the pattern is: | |
3657 | * | |
3658 | * ESC ] 1337 ; key = value ^G | |
3659 | * | |
3660 | * Whitespace is shown here for ease of reading: in practice, no | |
3661 | * spaces should be used. | |
3662 | * | |
3663 | * For file transfer and inline images, the code is: | |
3664 | * | |
3665 | * ESC ] 1337 ; File = [optional arguments] : base-64 encoded file contents ^G | |
3666 | * | |
3667 | * The optional arguments are formatted as key=value with a semicolon | |
3668 | * between each key-value pair. They are described below: | |
3669 | * | |
3670 | * Key Description of value | |
3671 | * name base-64 encoded filename. Defaults to "Unnamed file". | |
3672 | * size File size in bytes. Optional; this is only used by the | |
3673 | * progress indicator. | |
3674 | * width Width to render. See notes below. | |
3675 | * height Height to render. See notes below. | |
3676 | * preserveAspectRatio If set to 0, then the image's inherent aspect | |
3677 | * ratio will not be respected; otherwise, it | |
3678 | * will fill the specified width and height as | |
3679 | * much as possible without stretching. Defaults | |
3680 | * to 1. | |
3681 | * inline If set to 1, the file will be displayed inline. Otherwise, | |
3682 | * it will be downloaded with no visual representation in the | |
3683 | * terminal session. Defaults to 0. | |
3684 | * | |
3685 | * The width and height are given as a number followed by a unit, or | |
3686 | * the word "auto". | |
3687 | * | |
3688 | * N: N character cells. | |
3689 | * Npx: N pixels. | |
3690 | * N%: N percent of the session's width or height. | |
3691 | * auto: The image's inherent size will be used to determine an | |
3692 | * appropriate dimension. | |
3693 | * | |
3694 | */ | |
3695 | ||
3696 | // File contents can be several image formats. We will use PNG. | |
3697 | ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream(1024); | |
3698 | try { | |
3699 | if (!ImageIO.write(image.getSubimage(0, 0, image.getWidth(), | |
3700 | Math.min(image.getHeight(), fullHeight)), | |
3701 | "PNG", pngOutputStream) | |
3702 | ) { | |
3703 | // We failed to render image, bail out. | |
3704 | return ""; | |
3705 | } | |
3706 | } catch (IOException e) { | |
3707 | // We failed to render image, bail out. | |
3708 | return ""; | |
3709 | } | |
3710 | ||
9544763d KL |
3711 | sb.append("\033]1337;File="); |
3712 | /* | |
3713 | sb.append(String.format("width=$d;height=1;preserveAspectRatio=1;", | |
3714 | cells.size())); | |
3715 | */ | |
3716 | /* | |
3717 | sb.append(String.format("width=$dpx;height=%dpx;preserveAspectRatio=1;", | |
3718 | image.getWidth(), Math.min(image.getHeight(), | |
3719 | getTextHeight()))); | |
3720 | */ | |
3721 | sb.append("inline=1:"); | |
34bb6e52 | 3722 | sb.append(StringUtils.toBase64(pngOutputStream.toByteArray())); |
9544763d KL |
3723 | sb.append("\007"); |
3724 | ||
3725 | if (saveInCache) { | |
3726 | // This row is OK to save into the cache. | |
3727 | iterm2Cache.put(cells, sb.toString()); | |
3728 | } | |
3729 | ||
3730 | return (gotoXY(x, y) + sb.toString()); | |
3731 | } | |
3732 | ||
3733 | /** | |
3734 | * Get the iTerm2 images support flag. | |
3735 | * | |
3736 | * @return true if this terminal is emitting iTerm2 images | |
3737 | */ | |
3738 | public boolean hasIterm2Images() { | |
3739 | return iterm2Images; | |
3740 | } | |
3741 | ||
3742 | // ------------------------------------------------------------------------ | |
3743 | // End iTerm2 image output support ---------------------------------------- | |
3744 | // ------------------------------------------------------------------------ | |
686d4da2 KL |
3745 | |
3746 | // ------------------------------------------------------------------------ | |
3747 | // Jexer image output support --------------------------------------------- | |
3748 | // ------------------------------------------------------------------------ | |
3749 | ||
3750 | /** | |
3751 | * Create a Jexer images string representing a row of several cells | |
3752 | * containing bitmap data. | |
3753 | * | |
3754 | * @param x column coordinate. 0 is the left-most column. | |
3755 | * @param y row coordinate. 0 is the top-most row. | |
3756 | * @param cells the cells containing the bitmap data | |
3757 | * @return the string to emit to an ANSI / ECMA-style terminal | |
3758 | */ | |
3759 | private String toJexerImage(final int x, final int y, | |
3760 | final ArrayList<Cell> cells) { | |
3761 | ||
3762 | StringBuilder sb = new StringBuilder(); | |
3763 | ||
3764 | assert (cells != null); | |
3765 | assert (cells.size() > 0); | |
3766 | assert (cells.get(0).getImage() != null); | |
3767 | ||
83787cfb | 3768 | if (jexerImageOption == JexerImageOption.DISABLED) { |
686d4da2 KL |
3769 | sb.append(normal()); |
3770 | sb.append(gotoXY(x, y)); | |
3771 | for (int i = 0; i < cells.size(); i++) { | |
3772 | sb.append(' '); | |
3773 | } | |
3774 | return sb.toString(); | |
3775 | } | |
3776 | ||
3777 | if (jexerCache == null) { | |
3778 | jexerCache = new ImageCache(height * 10); | |
686d4da2 KL |
3779 | } |
3780 | ||
3781 | // Save and get rows to/from the cache that do NOT have inverted | |
3782 | // cells. | |
3783 | boolean saveInCache = true; | |
3784 | for (Cell cell: cells) { | |
3785 | if (cell.isInvertedImage()) { | |
3786 | saveInCache = false; | |
3787 | } | |
3788 | } | |
3789 | if (saveInCache) { | |
3790 | String cachedResult = jexerCache.get(cells); | |
3791 | if (cachedResult != null) { | |
3792 | // System.err.println("CACHE HIT"); | |
3793 | sb.append(gotoXY(x, y)); | |
3794 | sb.append(cachedResult); | |
3795 | return sb.toString(); | |
3796 | } | |
3797 | // System.err.println("CACHE MISS"); | |
3798 | } | |
3799 | ||
3800 | int imageWidth = cells.get(0).getImage().getWidth(); | |
3801 | int imageHeight = cells.get(0).getImage().getHeight(); | |
3802 | ||
83787cfb | 3803 | // Piece cells.get(x).getImage() pieces together into one larger |
686d4da2 KL |
3804 | // image for final rendering. |
3805 | int totalWidth = 0; | |
b73fc652 KL |
3806 | int fullWidth = cells.size() * imageWidth; |
3807 | int fullHeight = imageHeight; | |
686d4da2 KL |
3808 | for (int i = 0; i < cells.size(); i++) { |
3809 | totalWidth += cells.get(i).getImage().getWidth(); | |
3810 | } | |
3811 | ||
3812 | BufferedImage image = new BufferedImage(fullWidth, | |
3813 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
3814 | ||
3815 | int [] rgbArray; | |
3816 | for (int i = 0; i < cells.size() - 1; i++) { | |
b73fc652 KL |
3817 | int tileWidth = imageWidth; |
3818 | int tileHeight = imageHeight; | |
686d4da2 KL |
3819 | if (false && cells.get(i).isInvertedImage()) { |
3820 | // I used to put an all-white cell over the cursor, don't do | |
3821 | // that anymore. | |
3822 | rgbArray = new int[imageWidth * imageHeight]; | |
3823 | for (int j = 0; j < rgbArray.length; j++) { | |
3824 | rgbArray[j] = 0xFFFFFF; | |
3825 | } | |
3826 | } else { | |
3827 | try { | |
3828 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
3829 | tileWidth, tileHeight, null, 0, tileWidth); | |
3830 | } catch (Exception e) { | |
3831 | throw new RuntimeException("image " + imageWidth + "x" + | |
3832 | imageHeight + | |
3833 | "tile " + tileWidth + "x" + | |
3834 | tileHeight + | |
3835 | " cells.get(i).getImage() " + | |
3836 | cells.get(i).getImage() + | |
3837 | " i " + i + | |
3838 | " fullWidth " + fullWidth + | |
3839 | " fullHeight " + fullHeight, e); | |
3840 | } | |
3841 | } | |
3842 | ||
3843 | /* | |
3844 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
3845 | i * imageWidth, 0, imageWidth, imageHeight, | |
3846 | 0, imageWidth); | |
3847 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
3848 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
3849 | */ | |
3850 | ||
3851 | image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, | |
3852 | rgbArray, 0, tileWidth); | |
3853 | if (tileHeight < fullHeight) { | |
3854 | int backgroundColor = cells.get(i).getBackground().getRGB(); | |
3855 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
3856 | for (int imageY = imageHeight; imageY < fullHeight; | |
3857 | imageY++) { | |
3858 | ||
3859 | image.setRGB(imageX, imageY, backgroundColor); | |
3860 | } | |
3861 | } | |
3862 | } | |
3863 | } | |
3864 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
3865 | if (false && cells.get(cells.size() - 1).isInvertedImage()) { | |
3866 | // I used to put an all-white cell over the cursor, don't do that | |
3867 | // anymore. | |
3868 | rgbArray = new int[totalWidth * imageHeight]; | |
3869 | for (int j = 0; j < rgbArray.length; j++) { | |
3870 | rgbArray[j] = 0xFFFFFF; | |
3871 | } | |
3872 | } else { | |
3873 | try { | |
3874 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
3875 | totalWidth, imageHeight, null, 0, totalWidth); | |
3876 | } catch (Exception e) { | |
3877 | throw new RuntimeException("image " + imageWidth + "x" + | |
3878 | imageHeight + " cells.get(cells.size() - 1).getImage() " + | |
3879 | cells.get(cells.size() - 1).getImage(), e); | |
3880 | } | |
3881 | } | |
3882 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
3883 | imageHeight, rgbArray, 0, totalWidth); | |
3884 | ||
b73fc652 | 3885 | if (totalWidth < imageWidth) { |
686d4da2 KL |
3886 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); |
3887 | ||
3888 | for (int imageX = image.getWidth() - totalWidth; | |
3889 | imageX < image.getWidth(); imageX++) { | |
3890 | ||
3891 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
3892 | image.setRGB(imageX, imageY, backgroundColor); | |
3893 | } | |
3894 | } | |
3895 | } | |
3896 | ||
b73fc652 KL |
3897 | if ((image.getWidth() != cells.size() * getTextWidth()) |
3898 | || (image.getHeight() != getTextHeight()) | |
3899 | ) { | |
3900 | // Rescale the image to fit the text cells it is going into. | |
3901 | BufferedImage newImage; | |
3902 | newImage = new BufferedImage(cells.size() * getTextWidth(), | |
3903 | getTextHeight(), BufferedImage.TYPE_INT_ARGB); | |
3904 | ||
7ed28054 KL |
3905 | Graphics gr = newImage.getGraphics(); |
3906 | if (gr instanceof Graphics2D) { | |
3907 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_ANTIALIASING, | |
3908 | RenderingHints.VALUE_ANTIALIAS_ON); | |
3909 | ((Graphics2D) gr).setRenderingHint(RenderingHints.KEY_RENDERING, | |
3910 | RenderingHints.VALUE_RENDER_QUALITY); | |
3911 | } | |
b73fc652 KL |
3912 | gr.drawImage(image, 0, 0, newImage.getWidth(), |
3913 | newImage.getHeight(), null, null); | |
3914 | gr.dispose(); | |
3915 | image = newImage; | |
3916 | fullHeight = image.getHeight(); | |
3917 | } | |
3918 | ||
83787cfb KL |
3919 | if (jexerImageOption == JexerImageOption.PNG) { |
3920 | // Encode as PNG | |
3921 | ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream(1024); | |
3922 | try { | |
3923 | if (!ImageIO.write(image.getSubimage(0, 0, image.getWidth(), | |
3924 | Math.min(image.getHeight(), fullHeight)), | |
3925 | "PNG", pngOutputStream) | |
3926 | ) { | |
3927 | // We failed to render image, bail out. | |
3928 | return ""; | |
3929 | } | |
3930 | } catch (IOException e) { | |
3931 | // We failed to render image, bail out. | |
3932 | return ""; | |
3933 | } | |
3934 | ||
3935 | sb.append("\033]444;1;0;"); | |
34bb6e52 | 3936 | sb.append(StringUtils.toBase64(pngOutputStream.toByteArray())); |
83787cfb KL |
3937 | sb.append("\007"); |
3938 | ||
3939 | } else if (jexerImageOption == JexerImageOption.JPG) { | |
3940 | ||
3941 | // Encode as JPG | |
3942 | ByteArrayOutputStream jpgOutputStream = new ByteArrayOutputStream(1024); | |
3943 | ||
3944 | // Convert from ARGB to RGB, otherwise the JPG encode will fail. | |
3945 | BufferedImage jpgImage = new BufferedImage(image.getWidth(), | |
3946 | image.getHeight(), BufferedImage.TYPE_INT_RGB); | |
3947 | int [] pixels = new int[image.getWidth() * image.getHeight()]; | |
3948 | image.getRGB(0, 0, image.getWidth(), image.getHeight(), pixels, | |
3949 | 0, image.getWidth()); | |
3950 | jpgImage.setRGB(0, 0, image.getWidth(), image.getHeight(), pixels, | |
3951 | 0, image.getWidth()); | |
3952 | ||
3953 | try { | |
3954 | if (!ImageIO.write(jpgImage.getSubimage(0, 0, | |
3955 | jpgImage.getWidth(), | |
3956 | Math.min(jpgImage.getHeight(), fullHeight)), | |
3957 | "JPG", jpgOutputStream) | |
3958 | ) { | |
3959 | // We failed to render image, bail out. | |
3960 | return ""; | |
3961 | } | |
3962 | } catch (IOException e) { | |
3963 | // We failed to render image, bail out. | |
3964 | return ""; | |
3965 | } | |
3966 | ||
3967 | sb.append("\033]444;2;0;"); | |
34bb6e52 | 3968 | sb.append(StringUtils.toBase64(jpgOutputStream.toByteArray())); |
83787cfb | 3969 | sb.append("\007"); |
686d4da2 | 3970 | |
83787cfb KL |
3971 | } else if (jexerImageOption == JexerImageOption.RGB) { |
3972 | ||
3973 | // RGB | |
3974 | sb.append(String.format("\033]444;0;%d;%d;0;", image.getWidth(), | |
3975 | Math.min(image.getHeight(), fullHeight))); | |
3976 | ||
3977 | byte [] bytes = new byte[image.getWidth() * image.getHeight() * 3]; | |
3978 | int stride = image.getWidth(); | |
3979 | for (int px = 0; px < stride; px++) { | |
3980 | for (int py = 0; py < image.getHeight(); py++) { | |
3981 | int rgb = image.getRGB(px, py); | |
3982 | bytes[(py * stride * 3) + (px * 3)] = (byte) ((rgb >>> 16) & 0xFF); | |
3983 | bytes[(py * stride * 3) + (px * 3) + 1] = (byte) ((rgb >>> 8) & 0xFF); | |
3984 | bytes[(py * stride * 3) + (px * 3) + 2] = (byte) ( rgb & 0xFF); | |
3985 | } | |
686d4da2 | 3986 | } |
34bb6e52 | 3987 | sb.append(StringUtils.toBase64(bytes)); |
83787cfb | 3988 | sb.append("\007"); |
686d4da2 | 3989 | } |
686d4da2 KL |
3990 | |
3991 | if (saveInCache) { | |
3992 | // This row is OK to save into the cache. | |
3993 | jexerCache.put(cells, sb.toString()); | |
3994 | } | |
3995 | ||
3996 | return (gotoXY(x, y) + sb.toString()); | |
3997 | } | |
3998 | ||
3999 | /** | |
4000 | * Get the Jexer images support flag. | |
4001 | * | |
4002 | * @return true if this terminal is emitting Jexer images | |
4003 | */ | |
4004 | public boolean hasJexerImages() { | |
83787cfb | 4005 | return (jexerImageOption != JexerImageOption.DISABLED); |
686d4da2 KL |
4006 | } |
4007 | ||
4008 | // ------------------------------------------------------------------------ | |
4009 | // End Jexer image output support ----------------------------------------- | |
4010 | // ------------------------------------------------------------------------ | |
a69ed767 | 4011 | |
d91ac0f5 KL |
4012 | /** |
4013 | * Setup system colors to match DOS color palette. | |
4014 | */ | |
4015 | private void setDOSColors() { | |
4016 | MYBLACK = new java.awt.Color(0x00, 0x00, 0x00); | |
4017 | MYRED = new java.awt.Color(0xa8, 0x00, 0x00); | |
4018 | MYGREEN = new java.awt.Color(0x00, 0xa8, 0x00); | |
4019 | MYYELLOW = new java.awt.Color(0xa8, 0x54, 0x00); | |
4020 | MYBLUE = new java.awt.Color(0x00, 0x00, 0xa8); | |
4021 | MYMAGENTA = new java.awt.Color(0xa8, 0x00, 0xa8); | |
4022 | MYCYAN = new java.awt.Color(0x00, 0xa8, 0xa8); | |
4023 | MYWHITE = new java.awt.Color(0xa8, 0xa8, 0xa8); | |
4024 | MYBOLD_BLACK = new java.awt.Color(0x54, 0x54, 0x54); | |
4025 | MYBOLD_RED = new java.awt.Color(0xfc, 0x54, 0x54); | |
4026 | MYBOLD_GREEN = new java.awt.Color(0x54, 0xfc, 0x54); | |
4027 | MYBOLD_YELLOW = new java.awt.Color(0xfc, 0xfc, 0x54); | |
4028 | MYBOLD_BLUE = new java.awt.Color(0x54, 0x54, 0xfc); | |
4029 | MYBOLD_MAGENTA = new java.awt.Color(0xfc, 0x54, 0xfc); | |
4030 | MYBOLD_CYAN = new java.awt.Color(0x54, 0xfc, 0xfc); | |
4031 | MYBOLD_WHITE = new java.awt.Color(0xfc, 0xfc, 0xfc); | |
4032 | } | |
4033 | ||
4034 | /** | |
4035 | * Setup ECMA48 colors to match those provided in system properties. | |
4036 | */ | |
4037 | private void setCustomSystemColors() { | |
4038 | setDOSColors(); | |
4039 | ||
4040 | MYBLACK = getCustomColor("jexer.ECMA48.color0", MYBLACK); | |
4041 | MYRED = getCustomColor("jexer.ECMA48.color1", MYRED); | |
4042 | MYGREEN = getCustomColor("jexer.ECMA48.color2", MYGREEN); | |
4043 | MYYELLOW = getCustomColor("jexer.ECMA48.color3", MYYELLOW); | |
4044 | MYBLUE = getCustomColor("jexer.ECMA48.color4", MYBLUE); | |
4045 | MYMAGENTA = getCustomColor("jexer.ECMA48.color5", MYMAGENTA); | |
4046 | MYCYAN = getCustomColor("jexer.ECMA48.color6", MYCYAN); | |
4047 | MYWHITE = getCustomColor("jexer.ECMA48.color7", MYWHITE); | |
4048 | MYBOLD_BLACK = getCustomColor("jexer.ECMA48.color8", MYBOLD_BLACK); | |
4049 | MYBOLD_RED = getCustomColor("jexer.ECMA48.color9", MYBOLD_RED); | |
4050 | MYBOLD_GREEN = getCustomColor("jexer.ECMA48.color10", MYBOLD_GREEN); | |
4051 | MYBOLD_YELLOW = getCustomColor("jexer.ECMA48.color11", MYBOLD_YELLOW); | |
4052 | MYBOLD_BLUE = getCustomColor("jexer.ECMA48.color12", MYBOLD_BLUE); | |
4053 | MYBOLD_MAGENTA = getCustomColor("jexer.ECMA48.color13", MYBOLD_MAGENTA); | |
4054 | MYBOLD_CYAN = getCustomColor("jexer.ECMA48.color14", MYBOLD_CYAN); | |
4055 | MYBOLD_WHITE = getCustomColor("jexer.ECMA48.color15", MYBOLD_WHITE); | |
4056 | } | |
4057 | ||
4058 | /** | |
4059 | * Setup one system color to match the RGB value provided in system | |
4060 | * properties. | |
4061 | * | |
4062 | * @param key the system property key | |
4063 | * @param defaultColor the default color to return if key is not set, or | |
4064 | * incorrect | |
4065 | * @return a color from the RGB string, or defaultColor | |
4066 | */ | |
4067 | private java.awt.Color getCustomColor(final String key, | |
4068 | final java.awt.Color defaultColor) { | |
4069 | ||
4070 | String rgb = System.getProperty(key); | |
4071 | if (rgb == null) { | |
4072 | return defaultColor; | |
4073 | } | |
4074 | if (rgb.startsWith("#")) { | |
4075 | rgb = rgb.substring(1); | |
4076 | } | |
4077 | int rgbInt = 0; | |
4078 | try { | |
4079 | rgbInt = Integer.parseInt(rgb, 16); | |
4080 | } catch (NumberFormatException e) { | |
4081 | return defaultColor; | |
4082 | } | |
4083 | java.awt.Color color = new java.awt.Color((rgbInt & 0xFF0000) >>> 16, | |
4084 | (rgbInt & 0x00FF00) >>> 8, | |
4085 | (rgbInt & 0x0000FF)); | |
4086 | ||
4087 | return color; | |
4088 | } | |
4089 | ||
4090 | /** | |
4091 | * Create a T.416 RGB parameter sequence for a custom system color. | |
4092 | * | |
4093 | * @param color one of the MYBLACK, MYBOLD_BLUE, etc. colors | |
4094 | * @return the color portion of the string to emit to an ANSI / | |
4095 | * ECMA-style terminal | |
4096 | */ | |
4097 | private String systemColorRGB(final java.awt.Color color) { | |
4098 | return String.format("%d;%d;%d", color.getRed(), color.getGreen(), | |
4099 | color.getBlue()); | |
4100 | } | |
4101 | ||
b1589621 | 4102 | /** |
42873e30 | 4103 | * Create a SGR parameter sequence for a single color change. |
b1589621 | 4104 | * |
15ea4d73 | 4105 | * @param bold if true, set bold |
05dbb28d KL |
4106 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
4107 | * @param foreground if true, this is a foreground color | |
4108 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4109 | * e.g. "\033[42m" | |
b1589621 | 4110 | */ |
42873e30 | 4111 | private String color(final boolean bold, final Color color, |
15ea4d73 KL |
4112 | final boolean foreground) { |
4113 | return color(color, foreground, true) + | |
4114 | rgbColor(bold, color, foreground); | |
4115 | } | |
4116 | ||
051e2913 KL |
4117 | /** |
4118 | * Create a T.416 RGB parameter sequence for a single color change. | |
4119 | * | |
4120 | * @param colorRGB a 24-bit RGB value for foreground color | |
4121 | * @param foreground if true, this is a foreground color | |
4122 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4123 | * e.g. "\033[42m" | |
4124 | */ | |
4125 | private String colorRGB(final int colorRGB, final boolean foreground) { | |
4126 | ||
a69ed767 KL |
4127 | int colorRed = (colorRGB >>> 16) & 0xFF; |
4128 | int colorGreen = (colorRGB >>> 8) & 0xFF; | |
4129 | int colorBlue = colorRGB & 0xFF; | |
051e2913 KL |
4130 | |
4131 | StringBuilder sb = new StringBuilder(); | |
4132 | if (foreground) { | |
4133 | sb.append("\033[38;2;"); | |
4134 | } else { | |
4135 | sb.append("\033[48;2;"); | |
4136 | } | |
4137 | sb.append(String.format("%d;%d;%dm", colorRed, colorGreen, colorBlue)); | |
4138 | return sb.toString(); | |
4139 | } | |
4140 | ||
4141 | /** | |
4142 | * Create a T.416 RGB parameter sequence for both foreground and | |
4143 | * background color change. | |
4144 | * | |
4145 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
4146 | * @param backColorRGB a 24-bit RGB value for foreground color | |
4147 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4148 | * e.g. "\033[42m" | |
4149 | */ | |
4150 | private String colorRGB(final int foreColorRGB, final int backColorRGB) { | |
a69ed767 KL |
4151 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
4152 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
4153 | int foreColorBlue = foreColorRGB & 0xFF; | |
4154 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
4155 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
4156 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
4157 | |
4158 | StringBuilder sb = new StringBuilder(); | |
4159 | sb.append(String.format("\033[38;2;%d;%d;%dm", | |
4160 | foreColorRed, foreColorGreen, foreColorBlue)); | |
4161 | sb.append(String.format("\033[48;2;%d;%d;%dm", | |
4162 | backColorRed, backColorGreen, backColorBlue)); | |
4163 | return sb.toString(); | |
4164 | } | |
4165 | ||
15ea4d73 KL |
4166 | /** |
4167 | * Create a T.416 RGB parameter sequence for a single color change. | |
4168 | * | |
4169 | * @param bold if true, set bold | |
4170 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants | |
4171 | * @param foreground if true, this is a foreground color | |
4172 | * @return the string to emit to an xterm terminal with RGB support, | |
4173 | * e.g. "\033[38;2;RR;GG;BBm" | |
4174 | */ | |
4175 | private String rgbColor(final boolean bold, final Color color, | |
4176 | final boolean foreground) { | |
4177 | if (doRgbColor == false) { | |
4178 | return ""; | |
4179 | } | |
4180 | StringBuilder sb = new StringBuilder("\033["); | |
4181 | if (bold) { | |
4182 | // Bold implies foreground only | |
4183 | sb.append("38;2;"); | |
4184 | if (color.equals(Color.BLACK)) { | |
d91ac0f5 | 4185 | sb.append(systemColorRGB(MYBOLD_BLACK)); |
15ea4d73 | 4186 | } else if (color.equals(Color.RED)) { |
d91ac0f5 | 4187 | sb.append(systemColorRGB(MYBOLD_RED)); |
15ea4d73 | 4188 | } else if (color.equals(Color.GREEN)) { |
d91ac0f5 | 4189 | sb.append(systemColorRGB(MYBOLD_GREEN)); |
15ea4d73 | 4190 | } else if (color.equals(Color.YELLOW)) { |
d91ac0f5 | 4191 | sb.append(systemColorRGB(MYBOLD_YELLOW)); |
15ea4d73 | 4192 | } else if (color.equals(Color.BLUE)) { |
d91ac0f5 | 4193 | sb.append(systemColorRGB(MYBOLD_BLUE)); |
15ea4d73 | 4194 | } else if (color.equals(Color.MAGENTA)) { |
d91ac0f5 | 4195 | sb.append(systemColorRGB(MYBOLD_MAGENTA)); |
15ea4d73 | 4196 | } else if (color.equals(Color.CYAN)) { |
d91ac0f5 | 4197 | sb.append(systemColorRGB(MYBOLD_CYAN)); |
15ea4d73 | 4198 | } else if (color.equals(Color.WHITE)) { |
d91ac0f5 | 4199 | sb.append(systemColorRGB(MYBOLD_WHITE)); |
15ea4d73 KL |
4200 | } |
4201 | } else { | |
4202 | if (foreground) { | |
4203 | sb.append("38;2;"); | |
4204 | } else { | |
4205 | sb.append("48;2;"); | |
4206 | } | |
4207 | if (color.equals(Color.BLACK)) { | |
d91ac0f5 | 4208 | sb.append(systemColorRGB(MYBLACK)); |
15ea4d73 | 4209 | } else if (color.equals(Color.RED)) { |
d91ac0f5 | 4210 | sb.append(systemColorRGB(MYRED)); |
15ea4d73 | 4211 | } else if (color.equals(Color.GREEN)) { |
d91ac0f5 | 4212 | sb.append(systemColorRGB(MYGREEN)); |
15ea4d73 | 4213 | } else if (color.equals(Color.YELLOW)) { |
d91ac0f5 | 4214 | sb.append(systemColorRGB(MYYELLOW)); |
15ea4d73 | 4215 | } else if (color.equals(Color.BLUE)) { |
d91ac0f5 | 4216 | sb.append(systemColorRGB(MYBLUE)); |
15ea4d73 | 4217 | } else if (color.equals(Color.MAGENTA)) { |
d91ac0f5 | 4218 | sb.append(systemColorRGB(MYMAGENTA)); |
15ea4d73 | 4219 | } else if (color.equals(Color.CYAN)) { |
d91ac0f5 | 4220 | sb.append(systemColorRGB(MYCYAN)); |
15ea4d73 | 4221 | } else if (color.equals(Color.WHITE)) { |
d91ac0f5 | 4222 | sb.append(systemColorRGB(MYWHITE)); |
15ea4d73 KL |
4223 | } |
4224 | } | |
4225 | sb.append("m"); | |
4226 | return sb.toString(); | |
4227 | } | |
4228 | ||
4229 | /** | |
4230 | * Create a T.416 RGB parameter sequence for both foreground and | |
4231 | * background color change. | |
4232 | * | |
4233 | * @param bold if true, set bold | |
4234 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants | |
4235 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
4236 | * @return the string to emit to an xterm terminal with RGB support, | |
4237 | * e.g. "\033[38;2;RR;GG;BB;48;2;RR;GG;BBm" | |
4238 | */ | |
4239 | private String rgbColor(final boolean bold, final Color foreColor, | |
4240 | final Color backColor) { | |
4241 | if (doRgbColor == false) { | |
4242 | return ""; | |
4243 | } | |
4244 | ||
4245 | return rgbColor(bold, foreColor, true) + | |
4246 | rgbColor(false, backColor, false); | |
b1589621 KL |
4247 | } |
4248 | ||
4249 | /** | |
4250 | * Create a SGR parameter sequence for a single color change. | |
4251 | * | |
05dbb28d KL |
4252 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
4253 | * @param foreground if true, this is a foreground color | |
4254 | * @param header if true, make the full header, otherwise just emit the | |
4255 | * color parameter e.g. "42;" | |
4256 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4257 | * e.g. "\033[42m" | |
b1589621 | 4258 | */ |
b5f2a6db | 4259 | private String color(final Color color, final boolean foreground, |
7b5261bc KL |
4260 | final boolean header) { |
4261 | ||
4262 | int ecmaColor = color.getValue(); | |
4263 | ||
4264 | // Convert Color.* values to SGR numerics | |
4265 | if (foreground) { | |
4266 | ecmaColor += 30; | |
4267 | } else { | |
4268 | ecmaColor += 40; | |
4269 | } | |
4270 | ||
4271 | if (header) { | |
4272 | return String.format("\033[%dm", ecmaColor); | |
4273 | } else { | |
4274 | return String.format("%d;", ecmaColor); | |
4275 | } | |
b1589621 KL |
4276 | } |
4277 | ||
4278 | /** | |
b5f2a6db | 4279 | * Create a SGR parameter sequence for both foreground and background |
42873e30 | 4280 | * color change. |
b1589621 | 4281 | * |
15ea4d73 | 4282 | * @param bold if true, set bold |
05dbb28d KL |
4283 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
4284 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
4285 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4286 | * e.g. "\033[31;42m" | |
b1589621 | 4287 | */ |
42873e30 | 4288 | private String color(final boolean bold, final Color foreColor, |
15ea4d73 KL |
4289 | final Color backColor) { |
4290 | return color(foreColor, backColor, true) + | |
4291 | rgbColor(bold, foreColor, backColor); | |
b1589621 KL |
4292 | } |
4293 | ||
4294 | /** | |
4295 | * Create a SGR parameter sequence for both foreground and | |
4296 | * background color change. | |
4297 | * | |
05dbb28d KL |
4298 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
4299 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
4300 | * @param header if true, make the full header, otherwise just emit the | |
4301 | * color parameter e.g. "31;42;" | |
4302 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4303 | * e.g. "\033[31;42m" | |
b1589621 | 4304 | */ |
b5f2a6db | 4305 | private String color(final Color foreColor, final Color backColor, |
7b5261bc | 4306 | final boolean header) { |
b1589621 | 4307 | |
7b5261bc KL |
4308 | int ecmaForeColor = foreColor.getValue(); |
4309 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 4310 | |
7b5261bc KL |
4311 | // Convert Color.* values to SGR numerics |
4312 | ecmaBackColor += 40; | |
4313 | ecmaForeColor += 30; | |
b1589621 | 4314 | |
7b5261bc KL |
4315 | if (header) { |
4316 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
4317 | } else { | |
4318 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
4319 | } | |
b1589621 KL |
4320 | } |
4321 | ||
4322 | /** | |
4323 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d | 4324 | * several attributes. This sequence first resets all attributes to |
42873e30 | 4325 | * default, then sets attributes as per the parameters. |
b1589621 | 4326 | * |
05dbb28d KL |
4327 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
4328 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
4329 | * @param bold if true, set bold | |
4330 | * @param reverse if true, set reverse | |
4331 | * @param blink if true, set blink | |
4332 | * @param underline if true, set underline | |
4333 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4334 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 4335 | */ |
42873e30 | 4336 | private String color(final Color foreColor, final Color backColor, |
7b5261bc KL |
4337 | final boolean bold, final boolean reverse, final boolean blink, |
4338 | final boolean underline) { | |
4339 | ||
4340 | int ecmaForeColor = foreColor.getValue(); | |
4341 | int ecmaBackColor = backColor.getValue(); | |
4342 | ||
4343 | // Convert Color.* values to SGR numerics | |
4344 | ecmaBackColor += 40; | |
4345 | ecmaForeColor += 30; | |
4346 | ||
4347 | StringBuilder sb = new StringBuilder(); | |
4348 | if ( bold && reverse && blink && !underline ) { | |
4349 | sb.append("\033[0;1;7;5;"); | |
4350 | } else if ( bold && reverse && !blink && !underline ) { | |
4351 | sb.append("\033[0;1;7;"); | |
4352 | } else if ( !bold && reverse && blink && !underline ) { | |
4353 | sb.append("\033[0;7;5;"); | |
4354 | } else if ( bold && !reverse && blink && !underline ) { | |
4355 | sb.append("\033[0;1;5;"); | |
4356 | } else if ( bold && !reverse && !blink && !underline ) { | |
4357 | sb.append("\033[0;1;"); | |
4358 | } else if ( !bold && reverse && !blink && !underline ) { | |
4359 | sb.append("\033[0;7;"); | |
4360 | } else if ( !bold && !reverse && blink && !underline) { | |
4361 | sb.append("\033[0;5;"); | |
4362 | } else if ( bold && reverse && blink && underline ) { | |
4363 | sb.append("\033[0;1;7;5;4;"); | |
4364 | } else if ( bold && reverse && !blink && underline ) { | |
4365 | sb.append("\033[0;1;7;4;"); | |
4366 | } else if ( !bold && reverse && blink && underline ) { | |
4367 | sb.append("\033[0;7;5;4;"); | |
4368 | } else if ( bold && !reverse && blink && underline ) { | |
4369 | sb.append("\033[0;1;5;4;"); | |
4370 | } else if ( bold && !reverse && !blink && underline ) { | |
4371 | sb.append("\033[0;1;4;"); | |
4372 | } else if ( !bold && reverse && !blink && underline ) { | |
4373 | sb.append("\033[0;7;4;"); | |
4374 | } else if ( !bold && !reverse && blink && underline) { | |
4375 | sb.append("\033[0;5;4;"); | |
4376 | } else if ( !bold && !reverse && !blink && underline) { | |
4377 | sb.append("\033[0;4;"); | |
4378 | } else { | |
4379 | assert (!bold && !reverse && !blink && !underline); | |
4380 | sb.append("\033[0;"); | |
4381 | } | |
4382 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
8a632d71 KL |
4383 | sb.append(rgbColor(bold, foreColor, backColor)); |
4384 | return sb.toString(); | |
051e2913 KL |
4385 | } |
4386 | ||
4387 | /** | |
4388 | * Create a SGR parameter sequence for foreground, background, and | |
4389 | * several attributes. This sequence first resets all attributes to | |
4390 | * default, then sets attributes as per the parameters. | |
4391 | * | |
4392 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
4393 | * @param backColorRGB a 24-bit RGB value for foreground color | |
4394 | * @param bold if true, set bold | |
4395 | * @param reverse if true, set reverse | |
4396 | * @param blink if true, set blink | |
4397 | * @param underline if true, set underline | |
4398 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4399 | * e.g. "\033[0;1;31;42m" | |
4400 | */ | |
4401 | private String colorRGB(final int foreColorRGB, final int backColorRGB, | |
4402 | final boolean bold, final boolean reverse, final boolean blink, | |
4403 | final boolean underline) { | |
4404 | ||
a69ed767 KL |
4405 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
4406 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
4407 | int foreColorBlue = foreColorRGB & 0xFF; | |
4408 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
4409 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
4410 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
4411 | |
4412 | StringBuilder sb = new StringBuilder(); | |
4413 | if ( bold && reverse && blink && !underline ) { | |
4414 | sb.append("\033[0;1;7;5;"); | |
4415 | } else if ( bold && reverse && !blink && !underline ) { | |
4416 | sb.append("\033[0;1;7;"); | |
4417 | } else if ( !bold && reverse && blink && !underline ) { | |
4418 | sb.append("\033[0;7;5;"); | |
4419 | } else if ( bold && !reverse && blink && !underline ) { | |
4420 | sb.append("\033[0;1;5;"); | |
4421 | } else if ( bold && !reverse && !blink && !underline ) { | |
4422 | sb.append("\033[0;1;"); | |
4423 | } else if ( !bold && reverse && !blink && !underline ) { | |
4424 | sb.append("\033[0;7;"); | |
4425 | } else if ( !bold && !reverse && blink && !underline) { | |
4426 | sb.append("\033[0;5;"); | |
4427 | } else if ( bold && reverse && blink && underline ) { | |
4428 | sb.append("\033[0;1;7;5;4;"); | |
4429 | } else if ( bold && reverse && !blink && underline ) { | |
4430 | sb.append("\033[0;1;7;4;"); | |
4431 | } else if ( !bold && reverse && blink && underline ) { | |
4432 | sb.append("\033[0;7;5;4;"); | |
4433 | } else if ( bold && !reverse && blink && underline ) { | |
4434 | sb.append("\033[0;1;5;4;"); | |
4435 | } else if ( bold && !reverse && !blink && underline ) { | |
4436 | sb.append("\033[0;1;4;"); | |
4437 | } else if ( !bold && reverse && !blink && underline ) { | |
4438 | sb.append("\033[0;7;4;"); | |
4439 | } else if ( !bold && !reverse && blink && underline) { | |
4440 | sb.append("\033[0;5;4;"); | |
4441 | } else if ( !bold && !reverse && !blink && underline) { | |
4442 | sb.append("\033[0;4;"); | |
4443 | } else { | |
4444 | assert (!bold && !reverse && !blink && !underline); | |
4445 | sb.append("\033[0;"); | |
4446 | } | |
4447 | ||
4448 | sb.append("m\033[38;2;"); | |
4449 | sb.append(String.format("%d;%d;%d", foreColorRed, foreColorGreen, | |
4450 | foreColorBlue)); | |
4451 | sb.append("m\033[48;2;"); | |
4452 | sb.append(String.format("%d;%d;%d", backColorRed, backColorGreen, | |
4453 | backColorBlue)); | |
4454 | sb.append("m"); | |
4455 | return sb.toString(); | |
b1589621 KL |
4456 | } |
4457 | ||
b1589621 | 4458 | /** |
842be156 | 4459 | * Create a SGR parameter sequence to reset to VT100 defaults. |
b1589621 | 4460 | * |
05dbb28d KL |
4461 | * @return the string to emit to an ANSI / ECMA-style terminal, |
4462 | * e.g. "\033[0m" | |
b1589621 | 4463 | */ |
42873e30 | 4464 | private String normal() { |
8a632d71 | 4465 | return normal(true) + rgbColor(false, Color.WHITE, Color.BLACK); |
b1589621 KL |
4466 | } |
4467 | ||
842be156 KL |
4468 | /** |
4469 | * Create a SGR parameter sequence to reset to ECMA-48 default | |
4470 | * foreground/background. | |
4471 | * | |
4472 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4473 | * e.g. "\033[0m" | |
4474 | */ | |
4475 | private String defaultColor() { | |
4476 | /* | |
4477 | * VT100 normal. | |
4478 | * Normal (neither bold nor faint). | |
4479 | * Not italicized. | |
4480 | * Not underlined. | |
4481 | * Steady (not blinking). | |
4482 | * Positive (not inverse). | |
4483 | * Visible (not hidden). | |
4484 | * Not crossed-out. | |
4485 | * Default foreground color. | |
4486 | * Default background color. | |
4487 | */ | |
4488 | return "\033[0;22;23;24;25;27;28;29;39;49m"; | |
4489 | } | |
4490 | ||
b1589621 KL |
4491 | /** |
4492 | * Create a SGR parameter sequence to reset to defaults. | |
4493 | * | |
05dbb28d KL |
4494 | * @param header if true, make the full header, otherwise just emit the |
4495 | * bare parameter e.g. "0;" | |
4496 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
4497 | * e.g. "\033[0m" | |
b1589621 | 4498 | */ |
b5f2a6db | 4499 | private String normal(final boolean header) { |
7b5261bc KL |
4500 | if (header) { |
4501 | return "\033[0;37;40m"; | |
4502 | } | |
4503 | return "0;37;40"; | |
b1589621 KL |
4504 | } |
4505 | ||
b1589621 | 4506 | /** |
42873e30 | 4507 | * Create a SGR parameter sequence for enabling the visible cursor. |
b1589621 | 4508 | * |
05dbb28d KL |
4509 | * @param on if true, turn on cursor |
4510 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 4511 | */ |
42873e30 | 4512 | private String cursor(final boolean on) { |
7b5261bc KL |
4513 | if (on && !cursorOn) { |
4514 | cursorOn = true; | |
4515 | return "\033[?25h"; | |
4516 | } | |
4517 | if (!on && cursorOn) { | |
4518 | cursorOn = false; | |
4519 | return "\033[?25l"; | |
4520 | } | |
4521 | return ""; | |
b1589621 KL |
4522 | } |
4523 | ||
4524 | /** | |
4525 | * Clear the entire screen. Because some terminals use back-color-erase, | |
4526 | * set the color to white-on-black beforehand. | |
4527 | * | |
05dbb28d | 4528 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 4529 | */ |
42873e30 | 4530 | private String clearAll() { |
7b5261bc | 4531 | return "\033[0;37;40m\033[2J"; |
b1589621 KL |
4532 | } |
4533 | ||
4534 | /** | |
4535 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
4536 | * Because some terminals use back-color-erase, set the color to | |
42873e30 | 4537 | * white-on-black beforehand. |
b1589621 | 4538 | * |
05dbb28d | 4539 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 4540 | */ |
42873e30 | 4541 | private String clearRemainingLine() { |
7b5261bc | 4542 | return "\033[0;37;40m\033[K"; |
b1589621 KL |
4543 | } |
4544 | ||
b1589621 | 4545 | /** |
42873e30 | 4546 | * Move the cursor to (x, y). |
b1589621 | 4547 | * |
05dbb28d KL |
4548 | * @param x column coordinate. 0 is the left-most column. |
4549 | * @param y row coordinate. 0 is the top-most row. | |
4550 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 4551 | */ |
42873e30 | 4552 | private String gotoXY(final int x, final int y) { |
7b5261bc | 4553 | return String.format("\033[%d;%dH", y + 1, x + 1); |
b1589621 KL |
4554 | } |
4555 | ||
4556 | /** | |
05dbb28d | 4557 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
b5f2a6db KL |
4558 | * tracking", UTF-8 coordinates, and then SGR coordinates. Ideally we |
4559 | * will end up with SGR coordinates with UTF-8 coordinates as a fallback. | |
4560 | * See | |
b1589621 KL |
4561 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
4562 | * | |
05dbb28d | 4563 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 4564 | * |
978a5d8f KL |
4565 | * Finally, also emit a Privacy Message sequence that Jexer recognizes to |
4566 | * mean "hide the mouse pointer." We have to use our own sequence to do | |
4567 | * this because there is no standard in xterm for unilaterally hiding the | |
4568 | * pointer all the time (regardless of typing). | |
4569 | * | |
05dbb28d KL |
4570 | * @param on If true, enable mouse report and use the alternate screen |
4571 | * buffer. If false disable mouse reporting and use the primary screen | |
4572 | * buffer. | |
4573 | * @return the string to emit to xterm | |
b1589621 | 4574 | */ |
b5f2a6db | 4575 | private String mouse(final boolean on) { |
7b5261bc | 4576 | if (on) { |
978a5d8f | 4577 | return "\033[?1002;1003;1005;1006h\033[?1049h\033^hideMousePointer\033\\"; |
7b5261bc | 4578 | } |
978a5d8f | 4579 | return "\033[?1002;1003;1006;1005l\033[?1049l\033^showMousePointer\033\\"; |
b1589621 KL |
4580 | } |
4581 | ||
4582 | } |