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1ac2ccb1 KL |
1 | /** |
2 | * Jexer - Java Text User Interface | |
3 | * | |
4 | * License: LGPLv3 or later | |
5 | * | |
6 | * This module is licensed under the GNU Lesser General Public License | |
7 | * Version 3. Please see the file "COPYING" in this directory for more | |
8 | * information about the GNU Lesser General Public License Version 3. | |
9 | * | |
10 | * Copyright (C) 2015 Kevin Lamonte | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public License | |
14 | * as published by the Free Software Foundation; either version 3 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this program; if not, see | |
24 | * http://www.gnu.org/licenses/, or write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 | * 02110-1301 USA | |
27 | * | |
28 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
29 | * @version 1 | |
30 | */ | |
31 | package jexer.io; | |
32 | ||
33 | import jexer.bits.Cell; | |
34 | import jexer.bits.CellAttributes; | |
30bd4abd | 35 | import jexer.session.AWTSessionInfo; |
1ac2ccb1 KL |
36 | |
37 | import java.awt.Color; | |
38 | import java.awt.Cursor; | |
39 | import java.awt.Font; | |
40 | import java.awt.FontMetrics; | |
41 | import java.awt.Frame; | |
42 | import java.awt.Graphics; | |
84614868 | 43 | import java.awt.Insets; |
30bd4abd KL |
44 | import java.awt.Point; |
45 | import java.awt.Rectangle; | |
46 | import java.awt.Toolkit; | |
1ac2ccb1 | 47 | import java.awt.geom.Rectangle2D; |
30bd4abd | 48 | import java.awt.image.BufferedImage; |
84614868 | 49 | import java.io.InputStream; |
1ac2ccb1 KL |
50 | |
51 | /** | |
52 | * This Screen implementation draws to a Java AWT Frame. | |
53 | */ | |
54 | public final class AWTScreen extends Screen { | |
55 | ||
84614868 KL |
56 | private static Color MYBLACK; |
57 | private static Color MYRED; | |
58 | private static Color MYGREEN; | |
59 | private static Color MYYELLOW; | |
60 | private static Color MYBLUE; | |
61 | private static Color MYMAGENTA; | |
62 | private static Color MYCYAN; | |
63 | private static Color MYWHITE; | |
64 | ||
65 | private static Color MYBOLD_BLACK; | |
66 | private static Color MYBOLD_RED; | |
67 | private static Color MYBOLD_GREEN; | |
68 | private static Color MYBOLD_YELLOW; | |
69 | private static Color MYBOLD_BLUE; | |
70 | private static Color MYBOLD_MAGENTA; | |
71 | private static Color MYBOLD_CYAN; | |
72 | private static Color MYBOLD_WHITE; | |
73 | ||
74 | private static boolean dosColors = false; | |
75 | ||
76 | /** | |
77 | * Setup AWT colors to match DOS color palette. | |
78 | */ | |
79 | private static void setDOSColors() { | |
80 | if (dosColors) { | |
81 | return; | |
82 | } | |
83 | MYBLACK = new Color(0x00, 0x00, 0x00); | |
84 | MYRED = new Color(0xa8, 0x00, 0x00); | |
85 | MYGREEN = new Color(0x00, 0xa8, 0x00); | |
86 | MYYELLOW = new Color(0xa8, 0x54, 0x00); | |
87 | MYBLUE = new Color(0x00, 0x00, 0xa8); | |
88 | MYMAGENTA = new Color(0xa8, 0x00, 0xa8); | |
89 | MYCYAN = new Color(0x00, 0xa8, 0xa8); | |
90 | MYWHITE = new Color(0xa8, 0xa8, 0xa8); | |
91 | MYBOLD_BLACK = new Color(0x54, 0x54, 0x54); | |
92 | MYBOLD_RED = new Color(0xfc, 0x54, 0x54); | |
93 | MYBOLD_GREEN = new Color(0x54, 0xfc, 0x54); | |
94 | MYBOLD_YELLOW = new Color(0xfc, 0xfc, 0x54); | |
95 | MYBOLD_BLUE = new Color(0x54, 0x54, 0xfc); | |
96 | MYBOLD_MAGENTA = new Color(0xfc, 0x54, 0xfc); | |
97 | MYBOLD_CYAN = new Color(0x54, 0xfc, 0xfc); | |
98 | MYBOLD_WHITE = new Color(0xfc, 0xfc, 0xfc); | |
99 | ||
100 | dosColors = true; | |
101 | } | |
102 | ||
1ac2ccb1 KL |
103 | /** |
104 | * AWTFrame is our top-level hook into the AWT system. | |
105 | */ | |
106 | class AWTFrame extends Frame { | |
107 | ||
84614868 KL |
108 | /** |
109 | * The terminus font resource filename. | |
110 | */ | |
111 | private static final String FONTFILE = "terminus-ttf-4.39/TerminusTTF-Bold-4.39.ttf"; | |
112 | ||
1ac2ccb1 KL |
113 | /** |
114 | * The TUI Screen data. | |
115 | */ | |
116 | AWTScreen screen; | |
117 | ||
118 | /** | |
119 | * Width of a character cell. | |
120 | */ | |
121 | private int textWidth = 1; | |
122 | ||
123 | /** | |
124 | * Height of a character cell. | |
125 | */ | |
126 | private int textHeight = 1; | |
127 | ||
84614868 KL |
128 | /** |
129 | * Descent of a character cell. | |
130 | */ | |
131 | private int maxDescent = 0; | |
132 | ||
1ac2ccb1 KL |
133 | /** |
134 | * Top pixel value. | |
135 | */ | |
136 | private int top = 30; | |
84614868 | 137 | |
1ac2ccb1 KL |
138 | /** |
139 | * Left pixel value. | |
140 | */ | |
141 | private int left = 30; | |
84614868 KL |
142 | |
143 | /** | |
144 | * Convert a CellAttributes foreground color to an AWT Color. | |
145 | * | |
146 | * @param attr the text attributes | |
147 | * @return the AWT Color | |
148 | */ | |
149 | private Color attrToForegroundColor(final CellAttributes attr) { | |
150 | /* | |
151 | * TODO: | |
152 | * reverse | |
153 | * blink | |
154 | * underline | |
155 | */ | |
156 | if (attr.getBold()) { | |
157 | if (attr.getForeColor().equals(jexer.bits.Color.BLACK)) { | |
158 | return MYBOLD_BLACK; | |
159 | } else if (attr.getForeColor().equals(jexer.bits.Color.RED)) { | |
160 | return MYBOLD_RED; | |
161 | } else if (attr.getForeColor().equals(jexer.bits.Color.BLUE)) { | |
162 | return MYBOLD_BLUE; | |
163 | } else if (attr.getForeColor().equals(jexer.bits.Color.GREEN)) { | |
164 | return MYBOLD_GREEN; | |
165 | } else if (attr.getForeColor().equals(jexer.bits.Color.YELLOW)) { | |
166 | return MYBOLD_YELLOW; | |
167 | } else if (attr.getForeColor().equals(jexer.bits.Color.CYAN)) { | |
168 | return MYBOLD_CYAN; | |
169 | } else if (attr.getForeColor().equals(jexer.bits.Color.MAGENTA)) { | |
170 | return MYBOLD_MAGENTA; | |
171 | } else if (attr.getForeColor().equals(jexer.bits.Color.WHITE)) { | |
172 | return MYBOLD_WHITE; | |
173 | } | |
174 | } else { | |
175 | if (attr.getForeColor().equals(jexer.bits.Color.BLACK)) { | |
176 | return MYBLACK; | |
177 | } else if (attr.getForeColor().equals(jexer.bits.Color.RED)) { | |
178 | return MYRED; | |
179 | } else if (attr.getForeColor().equals(jexer.bits.Color.BLUE)) { | |
180 | return MYBLUE; | |
181 | } else if (attr.getForeColor().equals(jexer.bits.Color.GREEN)) { | |
182 | return MYGREEN; | |
183 | } else if (attr.getForeColor().equals(jexer.bits.Color.YELLOW)) { | |
184 | return MYYELLOW; | |
185 | } else if (attr.getForeColor().equals(jexer.bits.Color.CYAN)) { | |
186 | return MYCYAN; | |
187 | } else if (attr.getForeColor().equals(jexer.bits.Color.MAGENTA)) { | |
188 | return MYMAGENTA; | |
189 | } else if (attr.getForeColor().equals(jexer.bits.Color.WHITE)) { | |
190 | return MYWHITE; | |
191 | } | |
192 | } | |
193 | throw new IllegalArgumentException("Invalid color: " + attr.getForeColor().getValue()); | |
194 | } | |
195 | ||
196 | /** | |
197 | * Convert a CellAttributes background color to an AWT Color. | |
198 | * | |
199 | * @param attr the text attributes | |
200 | * @return the AWT Color | |
201 | */ | |
202 | private Color attrToBackgroundColor(final CellAttributes attr) { | |
203 | /* | |
204 | * TODO: | |
205 | * reverse | |
206 | * blink | |
207 | * underline | |
208 | */ | |
209 | if (attr.getBackColor().equals(jexer.bits.Color.BLACK)) { | |
210 | return MYBLACK; | |
211 | } else if (attr.getBackColor().equals(jexer.bits.Color.RED)) { | |
212 | return MYRED; | |
213 | } else if (attr.getBackColor().equals(jexer.bits.Color.BLUE)) { | |
214 | return MYBLUE; | |
215 | } else if (attr.getBackColor().equals(jexer.bits.Color.GREEN)) { | |
216 | return MYGREEN; | |
217 | } else if (attr.getBackColor().equals(jexer.bits.Color.YELLOW)) { | |
218 | return MYYELLOW; | |
219 | } else if (attr.getBackColor().equals(jexer.bits.Color.CYAN)) { | |
220 | return MYCYAN; | |
221 | } else if (attr.getBackColor().equals(jexer.bits.Color.MAGENTA)) { | |
222 | return MYMAGENTA; | |
223 | } else if (attr.getBackColor().equals(jexer.bits.Color.WHITE)) { | |
224 | return MYWHITE; | |
225 | } | |
226 | throw new IllegalArgumentException("Invalid color: " + attr.getBackColor().getValue()); | |
227 | } | |
228 | ||
1ac2ccb1 KL |
229 | /** |
230 | * Public constructor. | |
84614868 KL |
231 | * |
232 | * @param screen the Screen that Backend talks to | |
1ac2ccb1 | 233 | */ |
84614868 KL |
234 | public AWTFrame(final AWTScreen screen) { |
235 | this.screen = screen; | |
236 | setDOSColors(); | |
237 | ||
1ac2ccb1 KL |
238 | setTitle("Jexer Application"); |
239 | setBackground(java.awt.Color.black); | |
30bd4abd | 240 | // setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR)); |
84614868 | 241 | // setFont(new Font("Liberation Mono", Font.BOLD, 16)); |
1ac2ccb1 | 242 | // setFont(new Font(Font.MONOSPACED, Font.PLAIN, 16)); |
84614868 KL |
243 | |
244 | try { | |
30bd4abd | 245 | // Always try to use Terminus, the one decent font. |
84614868 KL |
246 | ClassLoader loader = Thread.currentThread().getContextClassLoader(); |
247 | InputStream in = loader.getResourceAsStream(FONTFILE); | |
248 | Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in); | |
249 | Font terminus = terminusRoot.deriveFont(Font.PLAIN, 22); | |
250 | setFont(terminus); | |
251 | } catch (Exception e) { | |
252 | e.printStackTrace(); | |
253 | // setFont(new Font("Liberation Mono", Font.PLAIN, 24)); | |
254 | setFont(new Font(Font.MONOSPACED, Font.PLAIN, 24)); | |
255 | } | |
1ac2ccb1 | 256 | setVisible(true); |
84614868 | 257 | resizeToScreen(); |
30bd4abd KL |
258 | |
259 | // Kill the X11 cursor | |
260 | // Transparent 16 x 16 pixel cursor image. | |
261 | BufferedImage cursorImg = new BufferedImage(16, 16, | |
262 | BufferedImage.TYPE_INT_ARGB); | |
263 | ||
264 | // Create a new blank cursor. | |
265 | Cursor blankCursor = Toolkit.getDefaultToolkit().createCustomCursor( | |
266 | cursorImg, new Point(0, 0), "blank cursor"); | |
267 | setCursor(blankCursor); | |
1ac2ccb1 KL |
268 | } |
269 | ||
270 | /** | |
271 | * Resize to font dimensions. | |
272 | */ | |
273 | public void resizeToScreen() { | |
84614868 KL |
274 | Graphics gr = getGraphics(); |
275 | FontMetrics fm = gr.getFontMetrics(); | |
276 | maxDescent = fm.getMaxDescent(); | |
277 | Rectangle2D bounds = fm.getMaxCharBounds(gr); | |
278 | int leading = fm.getLeading(); | |
279 | textWidth = (int)Math.round(bounds.getWidth()); | |
280 | textHeight = (int)Math.round(bounds.getHeight()) - maxDescent; | |
281 | // This also produces the same number, but works better for ugly | |
282 | // monospace. | |
283 | textHeight = fm.getMaxAscent() + maxDescent - leading; | |
284 | ||
285 | // Figure out the thickness of borders and use that to set the | |
286 | // final size. | |
287 | Insets insets = getInsets(); | |
288 | left = insets.left; | |
289 | top = insets.top; | |
290 | ||
291 | setSize(textWidth * screen.width + insets.left + insets.right, | |
292 | textHeight * screen.height + insets.top + insets.bottom); | |
293 | ||
294 | /* | |
295 | System.err.printf("W: %d H: %d MD: %d L: %d\n", textWidth, | |
296 | textHeight, maxDescent, leading); | |
297 | */ | |
1ac2ccb1 KL |
298 | } |
299 | ||
30bd4abd KL |
300 | /** |
301 | * Update redraws the whole screen. | |
302 | * | |
303 | * @param gr the AWT Graphics context | |
304 | */ | |
305 | @Override | |
306 | public void update(final Graphics gr) { | |
307 | // The default update clears the area. Don't do that, instead | |
308 | // just paint it directly. | |
309 | paint(gr); | |
310 | } | |
311 | ||
1ac2ccb1 KL |
312 | /** |
313 | * Paint redraws the whole screen. | |
314 | * | |
315 | * @param gr the AWT Graphics context | |
316 | */ | |
317 | @Override | |
84614868 | 318 | public void paint(final Graphics gr) { |
30bd4abd | 319 | Rectangle bounds = gr.getClipBounds(); |
1ac2ccb1 KL |
320 | |
321 | for (int y = 0; y < screen.height; y++) { | |
322 | for (int x = 0; x < screen.width; x++) { | |
84614868 KL |
323 | int xPixel = x * textWidth + left; |
324 | int yPixel = y * textHeight + top; | |
1ac2ccb1 | 325 | |
30bd4abd KL |
326 | Cell lCell = screen.logical[x][y]; |
327 | Cell pCell = screen.physical[x][y]; | |
328 | ||
329 | boolean inBounds = true; | |
330 | if (bounds != null) { | |
331 | if (bounds.contains(xPixel, yPixel) | |
332 | || bounds.contains(xPixel + textWidth, yPixel) | |
333 | || bounds.contains(xPixel, yPixel + textHeight) | |
334 | || bounds.contains(xPixel + textWidth, | |
335 | yPixel + textHeight) | |
336 | ) { | |
337 | // This area is damaged and will definitely be | |
338 | // redrawn. | |
339 | inBounds = true; | |
340 | } | |
341 | } | |
84614868 | 342 | |
30bd4abd | 343 | if (!lCell.equals(pCell) || inBounds) { |
1ac2ccb1 KL |
344 | // Draw the background rectangle, then the foreground |
345 | // character. | |
84614868 KL |
346 | gr.setColor(attrToBackgroundColor(lCell)); |
347 | gr.fillRect(xPixel, yPixel, textWidth, textHeight); | |
348 | gr.setColor(attrToForegroundColor(lCell)); | |
1ac2ccb1 KL |
349 | char [] chars = new char[1]; |
350 | chars[0] = lCell.getChar(); | |
351 | gr.drawChars(chars, 0, 1, xPixel, | |
84614868 | 352 | yPixel + textHeight - maxDescent); |
1ac2ccb1 KL |
353 | |
354 | // Physical is always updated | |
355 | physical[x][y].setTo(lCell); | |
356 | } | |
357 | } | |
358 | } | |
30bd4abd KL |
359 | |
360 | // Draw the cursor if it is visible | |
361 | if ((cursorVisible) | |
362 | && (cursorY <= screen.height - 1) | |
363 | && (cursorX <= screen.width - 1) | |
364 | ) { | |
365 | int xPixel = cursorX * textWidth + left; | |
366 | int yPixel = cursorY * textHeight + top; | |
367 | Cell lCell = screen.logical[cursorX][cursorY]; | |
368 | gr.setColor(attrToForegroundColor(lCell)); | |
369 | gr.fillRect(xPixel, yPixel + textHeight - 2, textWidth, 2); | |
370 | } | |
1ac2ccb1 KL |
371 | } |
372 | } | |
373 | ||
374 | /** | |
84614868 | 375 | * The raw AWT Frame. Note package private access. |
1ac2ccb1 | 376 | */ |
84614868 | 377 | AWTFrame frame; |
1ac2ccb1 KL |
378 | |
379 | /** | |
380 | * Public constructor. | |
381 | */ | |
382 | public AWTScreen() { | |
84614868 | 383 | frame = new AWTFrame(this); |
1ac2ccb1 KL |
384 | } |
385 | ||
30bd4abd KL |
386 | /** |
387 | * Create the AWTSessionInfo. Note package private access. | |
388 | * | |
389 | * @return the sessionInfo | |
390 | */ | |
391 | AWTSessionInfo getSessionInfo() { | |
392 | AWTSessionInfo sessionInfo = new AWTSessionInfo(frame, frame.textWidth, | |
393 | frame.textHeight); | |
394 | return sessionInfo; | |
395 | } | |
396 | ||
1ac2ccb1 KL |
397 | /** |
398 | * Push the logical screen to the physical device. | |
399 | */ | |
400 | @Override | |
401 | public void flushPhysical() { | |
30bd4abd KL |
402 | // Request a repaint, let the frame's repaint/update methods do the |
403 | // right thing. | |
404 | // Find the minimum-size damaged region. | |
405 | int xMin = frame.getWidth(); | |
406 | int xMax = 0; | |
407 | int yMin = frame.getHeight(); | |
408 | int yMax = 0; | |
409 | for (int y = 0; y < height; y++) { | |
410 | for (int x = 0; x < width; x++) { | |
411 | Cell lCell = logical[x][y]; | |
412 | Cell pCell = physical[x][y]; | |
413 | ||
414 | int xPixel = x * frame.textWidth + frame.left; | |
415 | int yPixel = y * frame.textHeight + frame.top; | |
416 | ||
417 | if (!lCell.equals(pCell) | |
418 | || ((x == cursorX) && (y == cursorY)) | |
419 | ) { | |
420 | if (xPixel < xMin) { | |
421 | xMin = xPixel; | |
422 | } | |
423 | if (xPixel + frame.textWidth > xMax) { | |
424 | xMax = xPixel + frame.textWidth; | |
425 | } | |
426 | if (yPixel < yMin) { | |
427 | yMin = yPixel; | |
428 | } | |
429 | if (yPixel + frame.textHeight > yMax) { | |
430 | yMax = yPixel + frame.textHeight; | |
431 | } | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
436 | // Ask for a repaint sometime in the next 10 millis. | |
437 | frame.repaint(10, xMin, yMin, xMax - xMin, yMax - yMin); | |
1ac2ccb1 | 438 | } |
30bd4abd KL |
439 | |
440 | /** | |
441 | * Put the cursor at (x,y). | |
442 | * | |
443 | * @param visible if true, the cursor should be visible | |
444 | * @param x column coordinate to put the cursor on | |
445 | * @param y row coordinate to put the cursor on | |
446 | */ | |
447 | @Override | |
448 | public void putCursor(final boolean visible, final int x, final int y) { | |
449 | if ((cursorVisible) | |
450 | && (cursorY <= height - 1) | |
451 | && (cursorX <= width - 1) | |
452 | ) { | |
453 | // Make the current cursor position dirty | |
454 | if (physical[cursorX][cursorY].getChar() == ' ') { | |
455 | physical[cursorX][cursorY].setChar('X'); | |
456 | } else { | |
457 | physical[cursorX][cursorY].setChar(' '); | |
458 | } | |
459 | } | |
460 | ||
461 | super.putCursor(visible, x, y); | |
462 | } | |
463 | ||
1ac2ccb1 | 464 | } |