Commit | Line | Data |
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daa4106c | 1 | /* |
34a42e78 KL |
2 | * Jexer - Java Text User Interface |
3 | * | |
e16dda65 | 4 | * The MIT License (MIT) |
34a42e78 | 5 | * |
a69ed767 | 6 | * Copyright (C) 2019 Kevin Lamonte |
34a42e78 | 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: | |
34a42e78 | 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. | |
34a42e78 | 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. | |
34a42e78 KL |
25 | * |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
28 | */ | |
29 | package jexer; | |
30 | ||
d1115203 KL |
31 | import java.awt.Font; |
32 | import java.awt.FontMetrics; | |
33 | import java.awt.Graphics2D; | |
5fc7bf09 | 34 | import java.awt.image.BufferedImage; |
d1115203 KL |
35 | |
36 | import java.io.InputStream; | |
34a42e78 | 37 | import java.io.IOException; |
55d2b2c2 | 38 | import java.lang.reflect.Field; |
339652cc | 39 | import java.text.MessageFormat; |
a69ed767 | 40 | import java.util.ArrayList; |
d1115203 | 41 | import java.util.HashMap; |
34a42e78 | 42 | import java.util.List; |
bd8d51fa | 43 | import java.util.Map; |
339652cc | 44 | import java.util.ResourceBundle; |
34a42e78 | 45 | |
d1115203 KL |
46 | import jexer.backend.ECMA48Terminal; |
47 | import jexer.backend.MultiScreen; | |
48 | import jexer.backend.SwingTerminal; | |
34a42e78 KL |
49 | import jexer.bits.Cell; |
50 | import jexer.bits.CellAttributes; | |
51 | import jexer.event.TKeypressEvent; | |
b2d49e0f | 52 | import jexer.event.TMenuEvent; |
34a42e78 KL |
53 | import jexer.event.TMouseEvent; |
54 | import jexer.event.TResizeEvent; | |
b2d49e0f | 55 | import jexer.menu.TMenu; |
34a42e78 | 56 | import jexer.tterminal.DisplayLine; |
be72cb5c | 57 | import jexer.tterminal.DisplayListener; |
34a42e78 KL |
58 | import jexer.tterminal.ECMA48; |
59 | import static jexer.TKeypress.*; | |
60 | ||
61 | /** | |
62 | * TTerminalWindow exposes a ECMA-48 / ANSI X3.64 style terminal in a window. | |
63 | */ | |
be72cb5c KL |
64 | public class TTerminalWindow extends TScrollableWindow |
65 | implements DisplayListener { | |
34a42e78 | 66 | |
339652cc KL |
67 | /** |
68 | * Translated strings. | |
69 | */ | |
70 | private static final ResourceBundle i18n = ResourceBundle.getBundle(TTerminalWindow.class.getName()); | |
71 | ||
615a0d99 KL |
72 | // ------------------------------------------------------------------------ |
73 | // Variables -------------------------------------------------------------- | |
74 | // ------------------------------------------------------------------------ | |
75 | ||
34a42e78 KL |
76 | /** |
77 | * The emulator. | |
78 | */ | |
79 | private ECMA48 emulator; | |
80 | ||
81 | /** | |
82 | * The Process created by the shell spawning constructor. | |
83 | */ | |
84 | private Process shell; | |
85 | ||
1d99a38f KL |
86 | /** |
87 | * If true, we are using the ptypipe utility to support dynamic window | |
88 | * resizing. ptypipe is available at | |
a69ed767 | 89 | * https://gitlab.com/klamonte/ptypipe . |
1d99a38f KL |
90 | */ |
91 | private boolean ptypipe = false; | |
92 | ||
a69ed767 KL |
93 | /** |
94 | * If true, close the window when the shell exits. | |
95 | */ | |
96 | private boolean closeOnExit = false; | |
97 | ||
d1115203 KL |
98 | /** |
99 | * System-dependent Y adjustment for text in the character cell | |
100 | * (double-height). | |
101 | */ | |
102 | private int doubleTextAdjustY = 0; | |
103 | ||
104 | /** | |
105 | * System-dependent X adjustment for text in the character cell | |
106 | * (double-height). | |
107 | */ | |
108 | private int doubleTextAdjustX = 0; | |
109 | ||
110 | /** | |
111 | * Descent of a character cell in pixels (double-height). | |
112 | */ | |
113 | private int doubleMaxDescent = 0; | |
114 | ||
115 | /** | |
116 | * Double-width font. | |
117 | */ | |
118 | private Font doubleFont = null; | |
119 | ||
120 | /** | |
121 | * Last text width value. | |
122 | */ | |
123 | private int lastTextWidth = -1; | |
124 | ||
125 | /** | |
126 | * Last text height value. | |
127 | */ | |
128 | private int lastTextHeight = -1; | |
129 | ||
130 | /** | |
131 | * A cache of previously-rendered double-width glyphs. | |
132 | */ | |
133 | private Map<Cell, BufferedImage> glyphCache; | |
134 | ||
b3d79e99 KL |
135 | /** |
136 | * A cache of previously-rendered double-width glyphs for blinking text, | |
137 | * when it is not visible. | |
138 | */ | |
139 | private Map<Cell, BufferedImage> glyphCacheBlink; | |
140 | ||
141 | /** | |
142 | * The blink state, used only by ECMA48 backend and when double-width | |
143 | * chars must be drawn. | |
144 | */ | |
145 | private boolean blinkState = true; | |
146 | ||
615a0d99 KL |
147 | // ------------------------------------------------------------------------ |
148 | // Constructors ----------------------------------------------------------- | |
149 | // ------------------------------------------------------------------------ | |
34a42e78 | 150 | |
b2d49e0f KL |
151 | /** |
152 | * Public constructor spawns a custom command line. | |
153 | * | |
154 | * @param application TApplication that manages this window | |
155 | * @param x column relative to parent | |
156 | * @param y row relative to parent | |
157 | * @param commandLine the command line to execute | |
158 | */ | |
159 | public TTerminalWindow(final TApplication application, final int x, | |
160 | final int y, final String commandLine) { | |
161 | ||
00691e80 | 162 | this(application, x, y, RESIZABLE, commandLine.split("\\s+"), |
a69ed767 KL |
163 | System.getProperty("jexer.TTerminal.closeOnExit", |
164 | "false").equals("true")); | |
165 | } | |
166 | ||
167 | /** | |
168 | * Public constructor spawns a custom command line. | |
169 | * | |
170 | * @param application TApplication that manages this window | |
171 | * @param x column relative to parent | |
172 | * @param y row relative to parent | |
173 | * @param commandLine the command line to execute | |
174 | * @param closeOnExit if true, close the window when the command exits | |
175 | */ | |
176 | public TTerminalWindow(final TApplication application, final int x, | |
177 | final int y, final String commandLine, final boolean closeOnExit) { | |
178 | ||
00691e80 | 179 | this(application, x, y, RESIZABLE, commandLine.split("\\s+"), |
a69ed767 | 180 | closeOnExit); |
b2d49e0f KL |
181 | } |
182 | ||
6f8ff91a KL |
183 | /** |
184 | * Public constructor spawns a custom command line. | |
185 | * | |
186 | * @param application TApplication that manages this window | |
187 | * @param x column relative to parent | |
188 | * @param y row relative to parent | |
189 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
a0d734e6 | 190 | * @param command the command line to execute |
6f8ff91a KL |
191 | */ |
192 | public TTerminalWindow(final TApplication application, final int x, | |
a0d734e6 | 193 | final int y, final int flags, final String [] command) { |
6f8ff91a | 194 | |
a69ed767 KL |
195 | this(application, x, y, flags, command, |
196 | System.getProperty("jexer.TTerminal.closeOnExit", | |
197 | "false").equals("true")); | |
198 | } | |
199 | ||
200 | /** | |
201 | * Public constructor spawns a custom command line. | |
202 | * | |
203 | * @param application TApplication that manages this window | |
204 | * @param x column relative to parent | |
205 | * @param y row relative to parent | |
206 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
207 | * @param command the command line to execute | |
208 | * @param closeOnExit if true, close the window when the command exits | |
209 | */ | |
210 | public TTerminalWindow(final TApplication application, final int x, | |
211 | final int y, final int flags, final String [] command, | |
212 | final boolean closeOnExit) { | |
213 | ||
6f8ff91a KL |
214 | super(application, i18n.getString("windowTitle"), x, y, |
215 | 80 + 2, 24 + 2, flags); | |
216 | ||
a69ed767 KL |
217 | this.closeOnExit = closeOnExit; |
218 | ||
a0d734e6 | 219 | String [] fullCommand; |
6f8ff91a KL |
220 | |
221 | // Spawn a shell and pass its I/O to the other constructor. | |
222 | if ((System.getProperty("jexer.TTerminal.ptypipe") != null) | |
223 | && (System.getProperty("jexer.TTerminal.ptypipe"). | |
224 | equals("true")) | |
225 | ) { | |
226 | ptypipe = true; | |
a0d734e6 KL |
227 | fullCommand = new String[command.length + 1]; |
228 | fullCommand[0] = "ptypipe"; | |
229 | System.arraycopy(command, 0, fullCommand, 1, command.length); | |
6f8ff91a | 230 | } else if (System.getProperty("os.name").startsWith("Windows")) { |
a0d734e6 KL |
231 | fullCommand = new String[3]; |
232 | fullCommand[0] = "cmd"; | |
233 | fullCommand[1] = "/c"; | |
234 | fullCommand[2] = stringArrayToString(command); | |
6f8ff91a | 235 | } else if (System.getProperty("os.name").startsWith("Mac")) { |
a0d734e6 KL |
236 | fullCommand = new String[6]; |
237 | fullCommand[0] = "script"; | |
238 | fullCommand[1] = "-q"; | |
239 | fullCommand[2] = "-F"; | |
240 | fullCommand[3] = "/dev/null"; | |
241 | fullCommand[4] = "-c"; | |
242 | fullCommand[5] = stringArrayToString(command); | |
6f8ff91a | 243 | } else { |
a0d734e6 KL |
244 | // Default: behave like Linux |
245 | fullCommand = new String[5]; | |
246 | fullCommand[0] = "script"; | |
247 | fullCommand[1] = "-fqe"; | |
248 | fullCommand[2] = "/dev/null"; | |
249 | fullCommand[3] = "-c"; | |
250 | fullCommand[4] = stringArrayToString(command); | |
6f8ff91a | 251 | } |
a0d734e6 | 252 | spawnShell(fullCommand); |
6f8ff91a KL |
253 | } |
254 | ||
255 | /** | |
256 | * Public constructor spawns a shell. | |
257 | * | |
258 | * @param application TApplication that manages this window | |
259 | * @param x column relative to parent | |
260 | * @param y row relative to parent | |
261 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
262 | */ | |
263 | public TTerminalWindow(final TApplication application, final int x, | |
264 | final int y, final int flags) { | |
265 | ||
a69ed767 KL |
266 | this(application, x, y, flags, |
267 | System.getProperty("jexer.TTerminal.closeOnExit", | |
268 | "false").equals("true")); | |
269 | ||
270 | } | |
271 | ||
272 | /** | |
273 | * Public constructor spawns a shell. | |
274 | * | |
275 | * @param application TApplication that manages this window | |
276 | * @param x column relative to parent | |
277 | * @param y row relative to parent | |
278 | * @param flags mask of CENTERED, MODAL, or RESIZABLE | |
279 | * @param closeOnExit if true, close the window when the shell exits | |
280 | */ | |
281 | public TTerminalWindow(final TApplication application, final int x, | |
282 | final int y, final int flags, final boolean closeOnExit) { | |
283 | ||
6f8ff91a KL |
284 | super(application, i18n.getString("windowTitle"), x, y, |
285 | 80 + 2, 24 + 2, flags); | |
286 | ||
a69ed767 KL |
287 | this.closeOnExit = closeOnExit; |
288 | ||
6f8ff91a KL |
289 | String cmdShellWindows = "cmd.exe"; |
290 | ||
291 | // You cannot run a login shell in a bare Process interactively, due | |
292 | // to libc's behavior of buffering when stdin/stdout aren't a tty. | |
293 | // Use 'script' instead to run a shell in a pty. And because BSD and | |
294 | // GNU differ on the '-f' vs '-F' flags, we need two different | |
295 | // commands. Lovely. | |
296 | String cmdShellGNU = "script -fqe /dev/null"; | |
297 | String cmdShellBSD = "script -q -F /dev/null"; | |
298 | ||
299 | // ptypipe is another solution that permits dynamic window resizing. | |
300 | String cmdShellPtypipe = "ptypipe /bin/bash --login"; | |
301 | ||
302 | // Spawn a shell and pass its I/O to the other constructor. | |
303 | if ((System.getProperty("jexer.TTerminal.ptypipe") != null) | |
304 | && (System.getProperty("jexer.TTerminal.ptypipe"). | |
305 | equals("true")) | |
306 | ) { | |
307 | ptypipe = true; | |
00691e80 | 308 | spawnShell(cmdShellPtypipe.split("\\s+")); |
6f8ff91a | 309 | } else if (System.getProperty("os.name").startsWith("Windows")) { |
00691e80 | 310 | spawnShell(cmdShellWindows.split("\\s+")); |
6f8ff91a | 311 | } else if (System.getProperty("os.name").startsWith("Mac")) { |
00691e80 | 312 | spawnShell(cmdShellBSD.split("\\s+")); |
6f8ff91a | 313 | } else if (System.getProperty("os.name").startsWith("Linux")) { |
00691e80 | 314 | spawnShell(cmdShellGNU.split("\\s+")); |
6f8ff91a KL |
315 | } else { |
316 | // When all else fails, assume GNU. | |
00691e80 | 317 | spawnShell(cmdShellGNU.split("\\s+")); |
6f8ff91a KL |
318 | } |
319 | } | |
320 | ||
615a0d99 KL |
321 | // ------------------------------------------------------------------------ |
322 | // TScrollableWindow ------------------------------------------------------ | |
323 | // ------------------------------------------------------------------------ | |
55d2b2c2 | 324 | |
34a42e78 KL |
325 | /** |
326 | * Draw the display buffer. | |
327 | */ | |
328 | @Override | |
329 | public void draw() { | |
330 | // Synchronize against the emulator so we don't stomp on its reader | |
331 | // thread. | |
332 | synchronized (emulator) { | |
333 | ||
334 | // Update the scroll bars | |
56661844 | 335 | reflowData(); |
34a42e78 KL |
336 | |
337 | // Draw the box using my superclass | |
338 | super.draw(); | |
339 | ||
340 | List<DisplayLine> scrollback = emulator.getScrollbackBuffer(); | |
341 | List<DisplayLine> display = emulator.getDisplayBuffer(); | |
342 | ||
343 | // Put together the visible rows | |
34a42e78 | 344 | int visibleHeight = getHeight() - 2; |
34a42e78 | 345 | int visibleBottom = scrollback.size() + display.size() |
56661844 | 346 | + getVerticalValue(); |
34a42e78 KL |
347 | assert (visibleBottom >= 0); |
348 | ||
a69ed767 | 349 | List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>(); |
34a42e78 | 350 | int visibleTop = visibleBottom - visibleHeight; |
34a42e78 KL |
351 | if (visibleTop < 0) { |
352 | for (int i = visibleTop; i < 0; i++) { | |
353 | preceedingBlankLines.add(emulator.getBlankDisplayLine()); | |
354 | } | |
355 | visibleTop = 0; | |
356 | } | |
357 | assert (visibleTop >= 0); | |
358 | ||
a69ed767 | 359 | List<DisplayLine> displayLines = new ArrayList<DisplayLine>(); |
34a42e78 KL |
360 | displayLines.addAll(scrollback); |
361 | displayLines.addAll(display); | |
34a42e78 | 362 | |
a69ed767 | 363 | List<DisplayLine> visibleLines = new ArrayList<DisplayLine>(); |
34a42e78 KL |
364 | visibleLines.addAll(preceedingBlankLines); |
365 | visibleLines.addAll(displayLines.subList(visibleTop, | |
366 | visibleBottom)); | |
34a42e78 KL |
367 | |
368 | visibleHeight -= visibleLines.size(); | |
34a42e78 KL |
369 | assert (visibleHeight >= 0); |
370 | ||
371 | // Now draw the emulator screen | |
372 | int row = 1; | |
373 | for (DisplayLine line: visibleLines) { | |
374 | int widthMax = emulator.getWidth(); | |
375 | if (line.isDoubleWidth()) { | |
376 | widthMax /= 2; | |
377 | } | |
378 | if (widthMax > getWidth() - 2) { | |
379 | widthMax = getWidth() - 2; | |
380 | } | |
381 | for (int i = 0; i < widthMax; i++) { | |
382 | Cell ch = line.charAt(i); | |
383 | Cell newCell = new Cell(); | |
384 | newCell.setTo(ch); | |
7c870d89 | 385 | boolean reverse = line.isReverseColor() ^ ch.isReverse(); |
34a42e78 KL |
386 | newCell.setReverse(false); |
387 | if (reverse) { | |
051e2913 KL |
388 | if (ch.getForeColorRGB() < 0) { |
389 | newCell.setBackColor(ch.getForeColor()); | |
390 | newCell.setBackColorRGB(-1); | |
391 | } else { | |
392 | newCell.setBackColorRGB(ch.getForeColorRGB()); | |
393 | } | |
394 | if (ch.getBackColorRGB() < 0) { | |
395 | newCell.setForeColor(ch.getBackColor()); | |
396 | newCell.setForeColorRGB(-1); | |
397 | } else { | |
398 | newCell.setForeColorRGB(ch.getBackColorRGB()); | |
399 | } | |
34a42e78 KL |
400 | } |
401 | if (line.isDoubleWidth()) { | |
d1115203 | 402 | putDoubleWidthCharXY(line, (i * 2) + 1, row, newCell); |
34a42e78 | 403 | } else { |
a69ed767 | 404 | putCharXY(i + 1, row, newCell); |
34a42e78 KL |
405 | } |
406 | } | |
407 | row++; | |
408 | if (row == getHeight() - 1) { | |
409 | // Don't overwrite the box edge | |
410 | break; | |
411 | } | |
412 | } | |
413 | CellAttributes background = new CellAttributes(); | |
414 | // Fill in the blank lines on bottom | |
415 | for (int i = 0; i < visibleHeight; i++) { | |
a69ed767 | 416 | hLineXY(1, i + row, getWidth() - 2, ' ', background); |
34a42e78 KL |
417 | } |
418 | ||
419 | } // synchronized (emulator) | |
420 | ||
421 | } | |
422 | ||
107bba16 KL |
423 | /** |
424 | * Handle window close. | |
425 | */ | |
426 | @Override | |
427 | public void onClose() { | |
428 | emulator.close(); | |
429 | if (shell != null) { | |
430 | terminateShellChildProcess(); | |
431 | shell.destroy(); | |
432 | shell = null; | |
433 | } | |
434 | } | |
435 | ||
be72cb5c | 436 | /** |
615a0d99 | 437 | * Handle window/screen resize events. |
aa77d682 | 438 | * |
615a0d99 | 439 | * @param resize resize event |
aa77d682 | 440 | */ |
615a0d99 KL |
441 | @Override |
442 | public void onResize(final TResizeEvent resize) { | |
443 | ||
444 | // Synchronize against the emulator so we don't stomp on its reader | |
445 | // thread. | |
446 | synchronized (emulator) { | |
447 | ||
448 | if (resize.getType() == TResizeEvent.Type.WIDGET) { | |
449 | // Resize the scroll bars | |
450 | reflowData(); | |
451 | placeScrollbars(); | |
452 | ||
453 | // Get out of scrollback | |
454 | setVerticalValue(0); | |
455 | ||
456 | if (ptypipe) { | |
457 | emulator.setWidth(getWidth() - 2); | |
458 | emulator.setHeight(getHeight() - 2); | |
459 | ||
460 | emulator.writeRemote("\033[8;" + (getHeight() - 2) + ";" + | |
461 | (getWidth() - 2) + "t"); | |
462 | } | |
463 | } | |
464 | return; | |
465 | ||
466 | } // synchronized (emulator) | |
aa77d682 KL |
467 | } |
468 | ||
469 | /** | |
615a0d99 | 470 | * Resize scrollbars for a new width/height. |
aa77d682 | 471 | */ |
615a0d99 KL |
472 | @Override |
473 | public void reflowData() { | |
474 | ||
475 | // Synchronize against the emulator so we don't stomp on its reader | |
476 | // thread. | |
477 | synchronized (emulator) { | |
478 | ||
479 | // Pull cursor information | |
480 | readEmulatorState(); | |
481 | ||
482 | // Vertical scrollbar | |
483 | setTopValue(getHeight() - 2 | |
484 | - (emulator.getScrollbackBuffer().size() | |
485 | + emulator.getDisplayBuffer().size())); | |
486 | setVerticalBigChange(getHeight() - 2); | |
487 | ||
488 | } // synchronized (emulator) | |
aa77d682 KL |
489 | } |
490 | ||
b2d49e0f | 491 | /** |
615a0d99 KL |
492 | * Handle keystrokes. |
493 | * | |
494 | * @param keypress keystroke event | |
34a42e78 | 495 | */ |
615a0d99 KL |
496 | @Override |
497 | public void onKeypress(final TKeypressEvent keypress) { | |
34a42e78 KL |
498 | |
499 | // Scrollback up/down | |
500 | if (keypress.equals(kbShiftPgUp) | |
501 | || keypress.equals(kbCtrlPgUp) | |
502 | || keypress.equals(kbAltPgUp) | |
503 | ) { | |
56661844 | 504 | bigVerticalDecrement(); |
34a42e78 KL |
505 | return; |
506 | } | |
507 | if (keypress.equals(kbShiftPgDn) | |
508 | || keypress.equals(kbCtrlPgDn) | |
509 | || keypress.equals(kbAltPgDn) | |
510 | ) { | |
56661844 | 511 | bigVerticalIncrement(); |
34a42e78 KL |
512 | return; |
513 | } | |
514 | ||
515 | // Synchronize against the emulator so we don't stomp on its reader | |
516 | // thread. | |
517 | synchronized (emulator) { | |
518 | if (emulator.isReading()) { | |
519 | // Get out of scrollback | |
56661844 | 520 | setVerticalValue(0); |
34a42e78 | 521 | emulator.keypress(keypress.getKey()); |
92554d64 KL |
522 | |
523 | // UGLY HACK TIME! cmd.exe needs CRLF, not just CR, so if | |
524 | // this is kBEnter then also send kbCtrlJ. | |
525 | if (System.getProperty("os.name").startsWith("Windows")) { | |
526 | if (keypress.equals(kbEnter)) { | |
527 | emulator.keypress(kbCtrlJ); | |
528 | } | |
529 | } | |
530 | ||
34a42e78 KL |
531 | readEmulatorState(); |
532 | return; | |
533 | } | |
534 | } | |
535 | ||
536 | // Process is closed, honor "normal" TUI keystrokes | |
537 | super.onKeypress(keypress); | |
538 | } | |
539 | ||
540 | /** | |
541 | * Handle mouse press events. | |
542 | * | |
543 | * @param mouse mouse button press event | |
544 | */ | |
545 | @Override | |
546 | public void onMouseDown(final TMouseEvent mouse) { | |
bd8d51fa KL |
547 | if (inWindowMove || inWindowResize) { |
548 | // TWindow needs to deal with this. | |
549 | super.onMouseDown(mouse); | |
550 | return; | |
551 | } | |
34a42e78 | 552 | |
7c870d89 | 553 | if (mouse.isMouseWheelUp()) { |
56661844 | 554 | verticalDecrement(); |
34a42e78 KL |
555 | return; |
556 | } | |
7c870d89 | 557 | if (mouse.isMouseWheelDown()) { |
56661844 | 558 | verticalIncrement(); |
34a42e78 KL |
559 | return; |
560 | } | |
bd8d51fa KL |
561 | if (mouseOnEmulator(mouse)) { |
562 | synchronized (emulator) { | |
563 | mouse.setX(mouse.getX() - 1); | |
564 | mouse.setY(mouse.getY() - 1); | |
565 | emulator.mouse(mouse); | |
566 | readEmulatorState(); | |
567 | return; | |
568 | } | |
569 | } | |
34a42e78 | 570 | |
bd8d51fa | 571 | // Emulator didn't consume it, pass it on |
34a42e78 KL |
572 | super.onMouseDown(mouse); |
573 | } | |
574 | ||
bd8d51fa KL |
575 | /** |
576 | * Handle mouse release events. | |
577 | * | |
578 | * @param mouse mouse button release event | |
579 | */ | |
580 | @Override | |
581 | public void onMouseUp(final TMouseEvent mouse) { | |
582 | if (inWindowMove || inWindowResize) { | |
583 | // TWindow needs to deal with this. | |
584 | super.onMouseUp(mouse); | |
585 | return; | |
586 | } | |
587 | ||
588 | if (mouseOnEmulator(mouse)) { | |
589 | synchronized (emulator) { | |
590 | mouse.setX(mouse.getX() - 1); | |
591 | mouse.setY(mouse.getY() - 1); | |
592 | emulator.mouse(mouse); | |
593 | readEmulatorState(); | |
594 | return; | |
595 | } | |
596 | } | |
597 | ||
598 | // Emulator didn't consume it, pass it on | |
599 | super.onMouseUp(mouse); | |
600 | } | |
601 | ||
602 | /** | |
603 | * Handle mouse motion events. | |
604 | * | |
605 | * @param mouse mouse motion event | |
606 | */ | |
607 | @Override | |
608 | public void onMouseMotion(final TMouseEvent mouse) { | |
609 | if (inWindowMove || inWindowResize) { | |
610 | // TWindow needs to deal with this. | |
611 | super.onMouseMotion(mouse); | |
612 | return; | |
613 | } | |
614 | ||
615 | if (mouseOnEmulator(mouse)) { | |
616 | synchronized (emulator) { | |
617 | mouse.setX(mouse.getX() - 1); | |
618 | mouse.setY(mouse.getY() - 1); | |
619 | emulator.mouse(mouse); | |
620 | readEmulatorState(); | |
621 | return; | |
622 | } | |
623 | } | |
624 | ||
625 | // Emulator didn't consume it, pass it on | |
626 | super.onMouseMotion(mouse); | |
627 | } | |
628 | ||
615a0d99 KL |
629 | // ------------------------------------------------------------------------ |
630 | // TTerminalWindow -------------------------------------------------------- | |
631 | // ------------------------------------------------------------------------ | |
632 | ||
633 | /** | |
634 | * Claim the keystrokes the emulator will need. | |
635 | */ | |
636 | private void addShortcutKeys() { | |
637 | addShortcutKeypress(kbCtrlA); | |
638 | addShortcutKeypress(kbCtrlB); | |
639 | addShortcutKeypress(kbCtrlC); | |
640 | addShortcutKeypress(kbCtrlD); | |
641 | addShortcutKeypress(kbCtrlE); | |
642 | addShortcutKeypress(kbCtrlF); | |
643 | addShortcutKeypress(kbCtrlG); | |
644 | addShortcutKeypress(kbCtrlH); | |
645 | addShortcutKeypress(kbCtrlU); | |
646 | addShortcutKeypress(kbCtrlJ); | |
647 | addShortcutKeypress(kbCtrlK); | |
648 | addShortcutKeypress(kbCtrlL); | |
649 | addShortcutKeypress(kbCtrlM); | |
650 | addShortcutKeypress(kbCtrlN); | |
651 | addShortcutKeypress(kbCtrlO); | |
652 | addShortcutKeypress(kbCtrlP); | |
653 | addShortcutKeypress(kbCtrlQ); | |
654 | addShortcutKeypress(kbCtrlR); | |
655 | addShortcutKeypress(kbCtrlS); | |
656 | addShortcutKeypress(kbCtrlT); | |
657 | addShortcutKeypress(kbCtrlU); | |
658 | addShortcutKeypress(kbCtrlV); | |
659 | addShortcutKeypress(kbCtrlW); | |
660 | addShortcutKeypress(kbCtrlX); | |
661 | addShortcutKeypress(kbCtrlY); | |
662 | addShortcutKeypress(kbCtrlZ); | |
663 | addShortcutKeypress(kbF1); | |
664 | addShortcutKeypress(kbF2); | |
665 | addShortcutKeypress(kbF3); | |
666 | addShortcutKeypress(kbF4); | |
667 | addShortcutKeypress(kbF5); | |
668 | addShortcutKeypress(kbF6); | |
669 | addShortcutKeypress(kbF7); | |
670 | addShortcutKeypress(kbF8); | |
671 | addShortcutKeypress(kbF9); | |
672 | addShortcutKeypress(kbF10); | |
673 | addShortcutKeypress(kbF11); | |
674 | addShortcutKeypress(kbF12); | |
675 | addShortcutKeypress(kbAltA); | |
676 | addShortcutKeypress(kbAltB); | |
677 | addShortcutKeypress(kbAltC); | |
678 | addShortcutKeypress(kbAltD); | |
679 | addShortcutKeypress(kbAltE); | |
680 | addShortcutKeypress(kbAltF); | |
681 | addShortcutKeypress(kbAltG); | |
682 | addShortcutKeypress(kbAltH); | |
683 | addShortcutKeypress(kbAltU); | |
684 | addShortcutKeypress(kbAltJ); | |
685 | addShortcutKeypress(kbAltK); | |
686 | addShortcutKeypress(kbAltL); | |
687 | addShortcutKeypress(kbAltM); | |
688 | addShortcutKeypress(kbAltN); | |
689 | addShortcutKeypress(kbAltO); | |
690 | addShortcutKeypress(kbAltP); | |
691 | addShortcutKeypress(kbAltQ); | |
692 | addShortcutKeypress(kbAltR); | |
693 | addShortcutKeypress(kbAltS); | |
694 | addShortcutKeypress(kbAltT); | |
695 | addShortcutKeypress(kbAltU); | |
696 | addShortcutKeypress(kbAltV); | |
697 | addShortcutKeypress(kbAltW); | |
698 | addShortcutKeypress(kbAltX); | |
699 | addShortcutKeypress(kbAltY); | |
700 | addShortcutKeypress(kbAltZ); | |
701 | } | |
702 | ||
703 | /** | |
704 | * Convert a string array to a whitespace-separated string. | |
705 | * | |
706 | * @param array the string array | |
707 | * @return a single string | |
708 | */ | |
709 | private String stringArrayToString(final String [] array) { | |
710 | StringBuilder sb = new StringBuilder(array[0].length()); | |
711 | for (int i = 0; i < array.length; i++) { | |
712 | sb.append(array[i]); | |
713 | if (i < array.length - 1) { | |
714 | sb.append(' '); | |
715 | } | |
716 | } | |
717 | return sb.toString(); | |
718 | } | |
719 | ||
720 | /** | |
721 | * Spawn the shell. | |
722 | * | |
723 | * @param command the command line to execute | |
724 | */ | |
725 | private void spawnShell(final String [] command) { | |
726 | ||
727 | /* | |
728 | System.err.printf("spawnShell(): '%s'\n", | |
729 | stringArrayToString(command)); | |
730 | */ | |
731 | ||
732 | vScroller = new TVScroller(this, getWidth() - 2, 0, getHeight() - 2); | |
733 | setBottomValue(0); | |
734 | ||
735 | // Assume XTERM | |
736 | ECMA48.DeviceType deviceType = ECMA48.DeviceType.XTERM; | |
737 | ||
738 | try { | |
739 | ProcessBuilder pb = new ProcessBuilder(command); | |
740 | Map<String, String> env = pb.environment(); | |
741 | env.put("TERM", ECMA48.deviceTypeTerm(deviceType)); | |
742 | env.put("LANG", ECMA48.deviceTypeLang(deviceType, "en")); | |
743 | env.put("COLUMNS", "80"); | |
744 | env.put("LINES", "24"); | |
745 | pb.redirectErrorStream(true); | |
746 | shell = pb.start(); | |
747 | emulator = new ECMA48(deviceType, shell.getInputStream(), | |
748 | shell.getOutputStream(), this); | |
749 | } catch (IOException e) { | |
750 | messageBox(i18n.getString("errorLaunchingShellTitle"), | |
751 | MessageFormat.format(i18n.getString("errorLaunchingShellText"), | |
752 | e.getMessage())); | |
753 | } | |
754 | ||
755 | // Setup the scroll bars | |
756 | onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(), | |
757 | getHeight())); | |
758 | ||
759 | // Claim the keystrokes the emulator will need. | |
760 | addShortcutKeys(); | |
761 | ||
762 | // Add shortcut text | |
763 | newStatusBar(i18n.getString("statusBarRunning")); | |
5fc7bf09 KL |
764 | |
765 | // Pass the correct text cell width/height to the emulator | |
766 | int textWidth = 16; | |
767 | int textHeight = 20; | |
768 | if (getScreen() instanceof SwingTerminal) { | |
769 | SwingTerminal terminal = (SwingTerminal) getScreen(); | |
770 | ||
771 | textWidth = terminal.getTextWidth(); | |
772 | textHeight = terminal.getTextHeight(); | |
773 | } else if (getScreen() instanceof ECMA48Terminal) { | |
774 | ECMA48Terminal terminal = (ECMA48Terminal) getScreen(); | |
775 | textWidth = terminal.getTextWidth(); | |
776 | textHeight = terminal.getTextHeight(); | |
777 | } | |
778 | emulator.setTextWidth(textWidth); | |
779 | emulator.setTextHeight(textHeight); | |
615a0d99 KL |
780 | } |
781 | ||
782 | /** | |
783 | * Terminate the child of the 'script' process used on POSIX. This may | |
784 | * or may not work. | |
785 | */ | |
786 | private void terminateShellChildProcess() { | |
787 | int pid = -1; | |
788 | if (shell.getClass().getName().equals("java.lang.UNIXProcess")) { | |
789 | /* get the PID on unix/linux systems */ | |
790 | try { | |
791 | Field field = shell.getClass().getDeclaredField("pid"); | |
792 | field.setAccessible(true); | |
793 | pid = field.getInt(shell); | |
794 | } catch (Throwable e) { | |
795 | // SQUASH, this didn't work. Just bail out quietly. | |
796 | return; | |
797 | } | |
798 | } | |
799 | if (pid != -1) { | |
800 | // shell.destroy() works successfully at killing this side of | |
801 | // 'script'. But we need to make sure the other side (child | |
802 | // process) is also killed. | |
803 | String [] cmdKillIt = { | |
804 | "pkill", "-P", Integer.toString(pid) | |
805 | }; | |
806 | try { | |
807 | Runtime.getRuntime().exec(cmdKillIt); | |
808 | } catch (Throwable e) { | |
809 | // SQUASH, this didn't work. Just bail out quietly. | |
810 | return; | |
811 | } | |
812 | } | |
813 | } | |
814 | ||
815 | /** | |
816 | * Called by emulator when fresh data has come in. | |
817 | */ | |
818 | public void displayChanged() { | |
819 | getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT)); | |
820 | } | |
821 | ||
822 | /** | |
823 | * Function to call to obtain the display width. | |
824 | * | |
825 | * @return the number of columns in the display | |
826 | */ | |
827 | public int getDisplayWidth() { | |
828 | if (ptypipe) { | |
829 | return getWidth() - 2; | |
830 | } | |
831 | return 80; | |
832 | } | |
833 | ||
834 | /** | |
835 | * Function to call to obtain the display height. | |
836 | * | |
837 | * @return the number of rows in the display | |
838 | */ | |
839 | public int getDisplayHeight() { | |
840 | if (ptypipe) { | |
841 | return getHeight() - 2; | |
842 | } | |
843 | return 24; | |
844 | } | |
845 | ||
846 | /** | |
847 | * Hook for subclasses to be notified of the shell termination. | |
848 | */ | |
849 | public void onShellExit() { | |
a69ed767 KL |
850 | if (closeOnExit) { |
851 | close(); | |
852 | } | |
615a0d99 KL |
853 | getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT)); |
854 | } | |
855 | ||
856 | /** | |
857 | * Copy out variables from the emulator that TTerminal has to expose on | |
858 | * screen. | |
859 | */ | |
860 | private void readEmulatorState() { | |
861 | // Synchronize against the emulator so we don't stomp on its reader | |
862 | // thread. | |
863 | synchronized (emulator) { | |
978a5d8f | 864 | setHiddenMouse(emulator.hasHiddenMousePointer()); |
9696a8f6 | 865 | |
615a0d99 KL |
866 | setCursorX(emulator.getCursorX() + 1); |
867 | setCursorY(emulator.getCursorY() + 1 | |
868 | + (getHeight() - 2 - emulator.getHeight()) | |
869 | - getVerticalValue()); | |
870 | setCursorVisible(emulator.isCursorVisible()); | |
871 | if (getCursorX() > getWidth() - 2) { | |
872 | setCursorVisible(false); | |
873 | } | |
874 | if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) { | |
875 | setCursorVisible(false); | |
876 | } | |
877 | if (emulator.getScreenTitle().length() > 0) { | |
878 | // Only update the title if the shell is still alive | |
879 | if (shell != null) { | |
880 | setTitle(emulator.getScreenTitle()); | |
881 | } | |
882 | } | |
883 | ||
884 | // Check to see if the shell has died. | |
885 | if (!emulator.isReading() && (shell != null)) { | |
886 | try { | |
887 | int rc = shell.exitValue(); | |
888 | // The emulator exited on its own, all is fine | |
889 | setTitle(MessageFormat.format(i18n. | |
890 | getString("windowTitleCompleted"), getTitle(), rc)); | |
891 | shell = null; | |
892 | emulator.close(); | |
893 | clearShortcutKeypresses(); | |
894 | statusBar.setText(MessageFormat.format(i18n. | |
895 | getString("statusBarCompleted"), rc)); | |
896 | onShellExit(); | |
897 | } catch (IllegalThreadStateException e) { | |
898 | // The emulator thread has exited, but the shell Process | |
899 | // hasn't figured that out yet. Do nothing, we will see | |
900 | // this in a future tick. | |
901 | } | |
902 | } else if (emulator.isReading() && (shell != null)) { | |
903 | // The shell might be dead, let's check | |
904 | try { | |
905 | int rc = shell.exitValue(); | |
906 | // If we got here, the shell died. | |
907 | setTitle(MessageFormat.format(i18n. | |
908 | getString("windowTitleCompleted"), getTitle(), rc)); | |
909 | shell = null; | |
910 | emulator.close(); | |
911 | clearShortcutKeypresses(); | |
912 | statusBar.setText(MessageFormat.format(i18n. | |
913 | getString("statusBarCompleted"), rc)); | |
914 | onShellExit(); | |
915 | } catch (IllegalThreadStateException e) { | |
916 | // The shell is still running, do nothing. | |
917 | } | |
918 | } | |
919 | ||
920 | } // synchronized (emulator) | |
921 | } | |
922 | ||
923 | /** | |
924 | * Check if a mouse press/release/motion event coordinate is over the | |
925 | * emulator. | |
926 | * | |
927 | * @param mouse a mouse-based event | |
928 | * @return whether or not the mouse is on the emulator | |
929 | */ | |
c88c4ced | 930 | private boolean mouseOnEmulator(final TMouseEvent mouse) { |
615a0d99 KL |
931 | |
932 | synchronized (emulator) { | |
933 | if (!emulator.isReading()) { | |
934 | return false; | |
935 | } | |
936 | } | |
937 | ||
938 | if ((mouse.getAbsoluteX() >= getAbsoluteX() + 1) | |
939 | && (mouse.getAbsoluteX() < getAbsoluteX() + getWidth() - 1) | |
940 | && (mouse.getAbsoluteY() >= getAbsoluteY() + 1) | |
941 | && (mouse.getAbsoluteY() < getAbsoluteY() + getHeight() - 1) | |
942 | ) { | |
943 | return true; | |
944 | } | |
945 | return false; | |
946 | } | |
947 | ||
d1115203 KL |
948 | /** |
949 | * Draw glyphs for a double-width or double-height VT100 cell to two | |
950 | * screen cells. | |
951 | * | |
952 | * @param line the line this VT100 cell is in | |
953 | * @param x the X position to draw the left half to | |
954 | * @param y the Y position to draw to | |
955 | * @param cell the cell to draw | |
956 | */ | |
957 | private void putDoubleWidthCharXY(final DisplayLine line, final int x, | |
958 | final int y, final Cell cell) { | |
959 | ||
960 | int textWidth = 16; | |
961 | int textHeight = 20; | |
b3d79e99 | 962 | boolean cursorBlinkVisible = true; |
d1115203 KL |
963 | |
964 | if (getScreen() instanceof SwingTerminal) { | |
965 | SwingTerminal terminal = (SwingTerminal) getScreen(); | |
966 | ||
967 | textWidth = terminal.getTextWidth(); | |
968 | textHeight = terminal.getTextHeight(); | |
b3d79e99 | 969 | cursorBlinkVisible = terminal.getCursorBlinkVisible(); |
d1115203 KL |
970 | } else if (getScreen() instanceof ECMA48Terminal) { |
971 | ECMA48Terminal terminal = (ECMA48Terminal) getScreen(); | |
972 | ||
5fc7bf09 KL |
973 | if (!terminal.hasSixel()) { |
974 | // The backend does not have sixel support, draw this as text | |
975 | // and bail out. | |
976 | putCharXY(x, y, cell); | |
977 | putCharXY(x + 1, y, ' ', cell); | |
978 | return; | |
979 | } | |
980 | ||
d1115203 KL |
981 | textWidth = terminal.getTextWidth(); |
982 | textHeight = terminal.getTextHeight(); | |
b3d79e99 | 983 | cursorBlinkVisible = blinkState; |
d1115203 KL |
984 | } else { |
985 | // We don't know how to dray glyphs to this screen, draw them as | |
986 | // text and bail out. | |
987 | putCharXY(x, y, cell); | |
988 | putCharXY(x + 1, y, ' ', cell); | |
989 | return; | |
990 | } | |
991 | ||
992 | if ((textWidth != lastTextWidth) || (textHeight != lastTextHeight)) { | |
993 | // Screen size has changed, reset all fonts. | |
994 | setupFonts(textHeight); | |
995 | lastTextWidth = textWidth; | |
996 | lastTextHeight = textHeight; | |
997 | } | |
998 | assert (doubleFont != null); | |
999 | ||
1000 | BufferedImage image = null; | |
b3d79e99 KL |
1001 | if (cell.isBlink() && !cursorBlinkVisible) { |
1002 | image = glyphCacheBlink.get(cell); | |
1003 | } else { | |
1004 | image = glyphCache.get(cell); | |
1005 | } | |
d1115203 KL |
1006 | if (image == null) { |
1007 | // Generate glyph and draw it to an image. | |
1008 | image = new BufferedImage(textWidth * 2, textHeight * 2, | |
1009 | BufferedImage.TYPE_INT_ARGB); | |
1010 | Graphics2D gr2 = image.createGraphics(); | |
1011 | gr2.setFont(doubleFont); | |
1012 | ||
1013 | // Draw the background rectangle, then the foreground character. | |
1014 | if (getScreen() instanceof ECMA48Terminal) { | |
1015 | // BUG: the background color is coming in the same as the | |
1016 | // foreground color. For now, don't draw it. | |
1017 | } else { | |
1018 | gr2.setColor(SwingTerminal.attrToBackgroundColor(cell)); | |
1019 | gr2.fillRect(0, 0, image.getWidth(), image.getHeight()); | |
1020 | } | |
b3d79e99 KL |
1021 | if (!cell.isBlink() |
1022 | || (cell.isBlink() && cursorBlinkVisible) | |
1023 | ) { | |
1024 | gr2.setColor(SwingTerminal.attrToForegroundColor(cell)); | |
1025 | char [] chars = new char[1]; | |
1026 | chars[0] = cell.getChar(); | |
1027 | gr2.drawChars(chars, 0, 1, doubleTextAdjustX, | |
1028 | (textHeight * 2) - doubleMaxDescent + doubleTextAdjustY); | |
1029 | ||
1030 | if (cell.isUnderline() && (line.getDoubleHeight() != 1)) { | |
1031 | gr2.fillRect(0, textHeight - 2, textWidth, 2); | |
1032 | } | |
d1115203 KL |
1033 | } |
1034 | gr2.dispose(); | |
1035 | ||
1036 | // Now save this generated image, using a new key that will not | |
1037 | // be mutated by invertCell(). | |
1038 | Cell key = new Cell(); | |
1039 | key.setTo(cell); | |
b3d79e99 KL |
1040 | if (cell.isBlink() && !cursorBlinkVisible) { |
1041 | glyphCacheBlink.put(key, image); | |
1042 | } else { | |
1043 | glyphCache.put(key, image); | |
1044 | } | |
d1115203 KL |
1045 | } |
1046 | ||
1047 | // Now that we have the double-wide glyph drawn, copy the right | |
1048 | // pieces of it to the cells. | |
1049 | Cell left = new Cell(); | |
1050 | Cell right = new Cell(); | |
1051 | left.setTo(cell); | |
1052 | right.setTo(cell); | |
1053 | right.setChar(' '); | |
1054 | BufferedImage leftImage = null; | |
1055 | BufferedImage rightImage = null; | |
1056 | switch (line.getDoubleHeight()) { | |
1057 | case 1: | |
1058 | // Top half double height | |
1059 | leftImage = image.getSubimage(0, 0, textWidth, textHeight); | |
1060 | rightImage = image.getSubimage(textWidth, 0, textWidth, textHeight); | |
1061 | break; | |
1062 | case 2: | |
1063 | // Bottom half double height | |
1064 | leftImage = image.getSubimage(0, textHeight, textWidth, textHeight); | |
1065 | rightImage = image.getSubimage(textWidth, textHeight, | |
1066 | textWidth, textHeight); | |
1067 | break; | |
1068 | default: | |
1069 | // Either single height double-width, or error fallback | |
1070 | BufferedImage wideImage = new BufferedImage(textWidth * 2, | |
1071 | textHeight, BufferedImage.TYPE_INT_ARGB); | |
1072 | Graphics2D grWide = wideImage.createGraphics(); | |
1073 | grWide.drawImage(image, 0, 0, wideImage.getWidth(), | |
1074 | wideImage.getHeight(), null); | |
1075 | grWide.dispose(); | |
1076 | leftImage = wideImage.getSubimage(0, 0, textWidth, textHeight); | |
1077 | rightImage = wideImage.getSubimage(textWidth, 0, textWidth, | |
1078 | textHeight); | |
1079 | break; | |
1080 | } | |
1081 | left.setImage(leftImage); | |
1082 | right.setImage(rightImage); | |
1083 | putCharXY(x, y, left); | |
1084 | putCharXY(x + 1, y, right); | |
1085 | } | |
1086 | ||
1087 | /** | |
1088 | * Set up the single and double-width fonts. | |
1089 | * | |
1090 | * @param fontSize the size of font to request for the single-width font. | |
1091 | * The double-width font will be 2x this value. | |
1092 | */ | |
1093 | private void setupFonts(final int fontSize) { | |
1094 | try { | |
1095 | ClassLoader loader = Thread.currentThread().getContextClassLoader(); | |
1096 | InputStream in = loader.getResourceAsStream(SwingTerminal.FONTFILE); | |
1097 | Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in); | |
1098 | Font terminusDouble = terminusRoot.deriveFont(Font.PLAIN, | |
1099 | fontSize * 2); | |
1100 | doubleFont = terminusDouble; | |
1101 | } catch (java.awt.FontFormatException e) { | |
1102 | new TExceptionDialog(getApplication(), e); | |
1103 | doubleFont = new Font(Font.MONOSPACED, Font.PLAIN, fontSize * 2); | |
1104 | } catch (java.io.IOException e) { | |
1105 | new TExceptionDialog(getApplication(), e); | |
1106 | doubleFont = new Font(Font.MONOSPACED, Font.PLAIN, fontSize * 2); | |
1107 | } | |
1108 | ||
1109 | // Get font descent. | |
1110 | BufferedImage image = new BufferedImage(fontSize * 10, fontSize * 10, | |
1111 | BufferedImage.TYPE_INT_ARGB); | |
1112 | Graphics2D gr = image.createGraphics(); | |
1113 | gr.setFont(doubleFont); | |
1114 | FontMetrics fm = gr.getFontMetrics(); | |
1115 | doubleMaxDescent = fm.getMaxDescent(); | |
1116 | ||
1117 | gr.dispose(); | |
1118 | ||
b3d79e99 | 1119 | // (Re)create the glyph caches. |
d1115203 | 1120 | glyphCache = new HashMap<Cell, BufferedImage>(); |
b3d79e99 KL |
1121 | glyphCacheBlink = new HashMap<Cell, BufferedImage>(); |
1122 | ||
1123 | // Special case: the ECMA48 backend needs to have a timer to drive | |
1124 | // its blink state. | |
1125 | if (getScreen() instanceof jexer.backend.ECMA48Terminal) { | |
1126 | // Blink every 500 millis. | |
1127 | long millis = 500; | |
1128 | getApplication().addTimer(millis, true, | |
1129 | new TAction() { | |
1130 | public void DO() { | |
1131 | blinkState = !blinkState; | |
1132 | getApplication().doRepaint(); | |
1133 | } | |
1134 | } | |
1135 | ); | |
1136 | } | |
1137 | ||
d1115203 KL |
1138 | } |
1139 | ||
34a42e78 | 1140 | } |