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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; | |
35 | ||
36 | import java.awt.Color; | |
37 | import java.awt.Cursor; | |
38 | import java.awt.Font; | |
39 | import java.awt.FontMetrics; | |
40 | import java.awt.Frame; | |
41 | import java.awt.Graphics; | |
84614868 | 42 | import java.awt.Insets; |
1ac2ccb1 | 43 | import java.awt.geom.Rectangle2D; |
84614868 | 44 | import java.io.InputStream; |
1ac2ccb1 KL |
45 | |
46 | /** | |
47 | * This Screen implementation draws to a Java AWT Frame. | |
48 | */ | |
49 | public final class AWTScreen extends Screen { | |
50 | ||
84614868 KL |
51 | private static Color MYBLACK; |
52 | private static Color MYRED; | |
53 | private static Color MYGREEN; | |
54 | private static Color MYYELLOW; | |
55 | private static Color MYBLUE; | |
56 | private static Color MYMAGENTA; | |
57 | private static Color MYCYAN; | |
58 | private static Color MYWHITE; | |
59 | ||
60 | private static Color MYBOLD_BLACK; | |
61 | private static Color MYBOLD_RED; | |
62 | private static Color MYBOLD_GREEN; | |
63 | private static Color MYBOLD_YELLOW; | |
64 | private static Color MYBOLD_BLUE; | |
65 | private static Color MYBOLD_MAGENTA; | |
66 | private static Color MYBOLD_CYAN; | |
67 | private static Color MYBOLD_WHITE; | |
68 | ||
69 | private static boolean dosColors = false; | |
70 | ||
71 | /** | |
72 | * Setup AWT colors to match DOS color palette. | |
73 | */ | |
74 | private static void setDOSColors() { | |
75 | if (dosColors) { | |
76 | return; | |
77 | } | |
78 | MYBLACK = new Color(0x00, 0x00, 0x00); | |
79 | MYRED = new Color(0xa8, 0x00, 0x00); | |
80 | MYGREEN = new Color(0x00, 0xa8, 0x00); | |
81 | MYYELLOW = new Color(0xa8, 0x54, 0x00); | |
82 | MYBLUE = new Color(0x00, 0x00, 0xa8); | |
83 | MYMAGENTA = new Color(0xa8, 0x00, 0xa8); | |
84 | MYCYAN = new Color(0x00, 0xa8, 0xa8); | |
85 | MYWHITE = new Color(0xa8, 0xa8, 0xa8); | |
86 | MYBOLD_BLACK = new Color(0x54, 0x54, 0x54); | |
87 | MYBOLD_RED = new Color(0xfc, 0x54, 0x54); | |
88 | MYBOLD_GREEN = new Color(0x54, 0xfc, 0x54); | |
89 | MYBOLD_YELLOW = new Color(0xfc, 0xfc, 0x54); | |
90 | MYBOLD_BLUE = new Color(0x54, 0x54, 0xfc); | |
91 | MYBOLD_MAGENTA = new Color(0xfc, 0x54, 0xfc); | |
92 | MYBOLD_CYAN = new Color(0x54, 0xfc, 0xfc); | |
93 | MYBOLD_WHITE = new Color(0xfc, 0xfc, 0xfc); | |
94 | ||
95 | dosColors = true; | |
96 | } | |
97 | ||
1ac2ccb1 KL |
98 | /** |
99 | * AWTFrame is our top-level hook into the AWT system. | |
100 | */ | |
101 | class AWTFrame extends Frame { | |
102 | ||
84614868 KL |
103 | /** |
104 | * The terminus font resource filename. | |
105 | */ | |
106 | private static final String FONTFILE = "terminus-ttf-4.39/TerminusTTF-Bold-4.39.ttf"; | |
107 | ||
1ac2ccb1 KL |
108 | /** |
109 | * The TUI Screen data. | |
110 | */ | |
111 | AWTScreen screen; | |
112 | ||
113 | /** | |
114 | * Width of a character cell. | |
115 | */ | |
116 | private int textWidth = 1; | |
117 | ||
118 | /** | |
119 | * Height of a character cell. | |
120 | */ | |
121 | private int textHeight = 1; | |
122 | ||
84614868 KL |
123 | /** |
124 | * Descent of a character cell. | |
125 | */ | |
126 | private int maxDescent = 0; | |
127 | ||
1ac2ccb1 KL |
128 | /** |
129 | * Top pixel value. | |
130 | */ | |
131 | private int top = 30; | |
84614868 | 132 | |
1ac2ccb1 KL |
133 | /** |
134 | * Left pixel value. | |
135 | */ | |
136 | private int left = 30; | |
84614868 KL |
137 | |
138 | /** | |
139 | * Convert a CellAttributes foreground color to an AWT Color. | |
140 | * | |
141 | * @param attr the text attributes | |
142 | * @return the AWT Color | |
143 | */ | |
144 | private Color attrToForegroundColor(final CellAttributes attr) { | |
145 | /* | |
146 | * TODO: | |
147 | * reverse | |
148 | * blink | |
149 | * underline | |
150 | */ | |
151 | if (attr.getBold()) { | |
152 | if (attr.getForeColor().equals(jexer.bits.Color.BLACK)) { | |
153 | return MYBOLD_BLACK; | |
154 | } else if (attr.getForeColor().equals(jexer.bits.Color.RED)) { | |
155 | return MYBOLD_RED; | |
156 | } else if (attr.getForeColor().equals(jexer.bits.Color.BLUE)) { | |
157 | return MYBOLD_BLUE; | |
158 | } else if (attr.getForeColor().equals(jexer.bits.Color.GREEN)) { | |
159 | return MYBOLD_GREEN; | |
160 | } else if (attr.getForeColor().equals(jexer.bits.Color.YELLOW)) { | |
161 | return MYBOLD_YELLOW; | |
162 | } else if (attr.getForeColor().equals(jexer.bits.Color.CYAN)) { | |
163 | return MYBOLD_CYAN; | |
164 | } else if (attr.getForeColor().equals(jexer.bits.Color.MAGENTA)) { | |
165 | return MYBOLD_MAGENTA; | |
166 | } else if (attr.getForeColor().equals(jexer.bits.Color.WHITE)) { | |
167 | return MYBOLD_WHITE; | |
168 | } | |
169 | } else { | |
170 | if (attr.getForeColor().equals(jexer.bits.Color.BLACK)) { | |
171 | return MYBLACK; | |
172 | } else if (attr.getForeColor().equals(jexer.bits.Color.RED)) { | |
173 | return MYRED; | |
174 | } else if (attr.getForeColor().equals(jexer.bits.Color.BLUE)) { | |
175 | return MYBLUE; | |
176 | } else if (attr.getForeColor().equals(jexer.bits.Color.GREEN)) { | |
177 | return MYGREEN; | |
178 | } else if (attr.getForeColor().equals(jexer.bits.Color.YELLOW)) { | |
179 | return MYYELLOW; | |
180 | } else if (attr.getForeColor().equals(jexer.bits.Color.CYAN)) { | |
181 | return MYCYAN; | |
182 | } else if (attr.getForeColor().equals(jexer.bits.Color.MAGENTA)) { | |
183 | return MYMAGENTA; | |
184 | } else if (attr.getForeColor().equals(jexer.bits.Color.WHITE)) { | |
185 | return MYWHITE; | |
186 | } | |
187 | } | |
188 | throw new IllegalArgumentException("Invalid color: " + attr.getForeColor().getValue()); | |
189 | } | |
190 | ||
191 | /** | |
192 | * Convert a CellAttributes background color to an AWT Color. | |
193 | * | |
194 | * @param attr the text attributes | |
195 | * @return the AWT Color | |
196 | */ | |
197 | private Color attrToBackgroundColor(final CellAttributes attr) { | |
198 | /* | |
199 | * TODO: | |
200 | * reverse | |
201 | * blink | |
202 | * underline | |
203 | */ | |
204 | if (attr.getBackColor().equals(jexer.bits.Color.BLACK)) { | |
205 | return MYBLACK; | |
206 | } else if (attr.getBackColor().equals(jexer.bits.Color.RED)) { | |
207 | return MYRED; | |
208 | } else if (attr.getBackColor().equals(jexer.bits.Color.BLUE)) { | |
209 | return MYBLUE; | |
210 | } else if (attr.getBackColor().equals(jexer.bits.Color.GREEN)) { | |
211 | return MYGREEN; | |
212 | } else if (attr.getBackColor().equals(jexer.bits.Color.YELLOW)) { | |
213 | return MYYELLOW; | |
214 | } else if (attr.getBackColor().equals(jexer.bits.Color.CYAN)) { | |
215 | return MYCYAN; | |
216 | } else if (attr.getBackColor().equals(jexer.bits.Color.MAGENTA)) { | |
217 | return MYMAGENTA; | |
218 | } else if (attr.getBackColor().equals(jexer.bits.Color.WHITE)) { | |
219 | return MYWHITE; | |
220 | } | |
221 | throw new IllegalArgumentException("Invalid color: " + attr.getBackColor().getValue()); | |
222 | } | |
223 | ||
1ac2ccb1 KL |
224 | /** |
225 | * Public constructor. | |
84614868 KL |
226 | * |
227 | * @param screen the Screen that Backend talks to | |
1ac2ccb1 | 228 | */ |
84614868 KL |
229 | public AWTFrame(final AWTScreen screen) { |
230 | this.screen = screen; | |
231 | setDOSColors(); | |
232 | ||
1ac2ccb1 KL |
233 | setTitle("Jexer Application"); |
234 | setBackground(java.awt.Color.black); | |
235 | setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR)); | |
84614868 | 236 | // setFont(new Font("Liberation Mono", Font.BOLD, 16)); |
1ac2ccb1 | 237 | // setFont(new Font(Font.MONOSPACED, Font.PLAIN, 16)); |
84614868 KL |
238 | |
239 | try { | |
240 | ClassLoader loader = Thread.currentThread().getContextClassLoader(); | |
241 | InputStream in = loader.getResourceAsStream(FONTFILE); | |
242 | Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in); | |
243 | Font terminus = terminusRoot.deriveFont(Font.PLAIN, 22); | |
244 | setFont(terminus); | |
245 | } catch (Exception e) { | |
246 | e.printStackTrace(); | |
247 | // setFont(new Font("Liberation Mono", Font.PLAIN, 24)); | |
248 | setFont(new Font(Font.MONOSPACED, Font.PLAIN, 24)); | |
249 | } | |
1ac2ccb1 | 250 | setVisible(true); |
84614868 | 251 | resizeToScreen(); |
1ac2ccb1 KL |
252 | } |
253 | ||
254 | /** | |
255 | * Resize to font dimensions. | |
256 | */ | |
257 | public void resizeToScreen() { | |
84614868 KL |
258 | Graphics gr = getGraphics(); |
259 | FontMetrics fm = gr.getFontMetrics(); | |
260 | maxDescent = fm.getMaxDescent(); | |
261 | Rectangle2D bounds = fm.getMaxCharBounds(gr); | |
262 | int leading = fm.getLeading(); | |
263 | textWidth = (int)Math.round(bounds.getWidth()); | |
264 | textHeight = (int)Math.round(bounds.getHeight()) - maxDescent; | |
265 | // This also produces the same number, but works better for ugly | |
266 | // monospace. | |
267 | textHeight = fm.getMaxAscent() + maxDescent - leading; | |
268 | ||
269 | // Figure out the thickness of borders and use that to set the | |
270 | // final size. | |
271 | Insets insets = getInsets(); | |
272 | left = insets.left; | |
273 | top = insets.top; | |
274 | ||
275 | setSize(textWidth * screen.width + insets.left + insets.right, | |
276 | textHeight * screen.height + insets.top + insets.bottom); | |
277 | ||
278 | /* | |
279 | System.err.printf("W: %d H: %d MD: %d L: %d\n", textWidth, | |
280 | textHeight, maxDescent, leading); | |
281 | */ | |
1ac2ccb1 KL |
282 | } |
283 | ||
284 | /** | |
285 | * Paint redraws the whole screen. | |
286 | * | |
287 | * @param gr the AWT Graphics context | |
288 | */ | |
289 | @Override | |
84614868 | 290 | public void paint(final Graphics gr) { |
1ac2ccb1 KL |
291 | |
292 | for (int y = 0; y < screen.height; y++) { | |
293 | for (int x = 0; x < screen.width; x++) { | |
294 | Cell lCell = screen.logical[x][y]; | |
295 | Cell pCell = screen.physical[x][y]; | |
296 | ||
84614868 KL |
297 | int xPixel = x * textWidth + left; |
298 | int yPixel = y * textHeight + top; | |
1ac2ccb1 KL |
299 | |
300 | if (!lCell.equals(pCell)) { | |
84614868 | 301 | |
1ac2ccb1 KL |
302 | // Draw the background rectangle, then the foreground |
303 | // character. | |
84614868 KL |
304 | gr.setColor(attrToBackgroundColor(lCell)); |
305 | gr.fillRect(xPixel, yPixel, textWidth, textHeight); | |
306 | gr.setColor(attrToForegroundColor(lCell)); | |
1ac2ccb1 KL |
307 | char [] chars = new char[1]; |
308 | chars[0] = lCell.getChar(); | |
309 | gr.drawChars(chars, 0, 1, xPixel, | |
84614868 | 310 | yPixel + textHeight - maxDescent); |
1ac2ccb1 KL |
311 | |
312 | // Physical is always updated | |
313 | physical[x][y].setTo(lCell); | |
314 | } | |
315 | } | |
316 | } | |
317 | } | |
318 | } | |
319 | ||
320 | /** | |
84614868 | 321 | * The raw AWT Frame. Note package private access. |
1ac2ccb1 | 322 | */ |
84614868 | 323 | AWTFrame frame; |
1ac2ccb1 KL |
324 | |
325 | /** | |
326 | * Public constructor. | |
327 | */ | |
328 | public AWTScreen() { | |
84614868 | 329 | frame = new AWTFrame(this); |
1ac2ccb1 KL |
330 | } |
331 | ||
332 | /** | |
333 | * Push the logical screen to the physical device. | |
334 | */ | |
335 | @Override | |
336 | public void flushPhysical() { | |
337 | Graphics gr = frame.getGraphics(); | |
338 | frame.paint(gr); | |
339 | } | |
340 | } |