Commit | Line | Data |
---|---|---|
a3b510ab NR |
1 | /* |
2 | * This file is part of lanterna (http://code.google.com/p/lanterna/). | |
3 | * | |
4 | * lanterna is free software: you can redistribute it and/or modify | |
5 | * it under the terms of the GNU Lesser General Public License as published by | |
6 | * the Free Software Foundation, either version 3 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU Lesser General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU Lesser General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | * | |
17 | * Copyright (C) 2010-2015 Martin | |
18 | */ | |
19 | package com.googlecode.lanterna.input; | |
20 | ||
21 | import com.googlecode.lanterna.TerminalPosition; | |
22 | ||
23 | /** | |
24 | * This class recognizes character combinations which are actually a cursor position report. See | |
25 | * <a href="http://en.wikipedia.org/wiki/ANSI_escape_code">Wikipedia</a>'s article on ANSI escape codes for more | |
26 | * information about how cursor position reporting works ("DSR – Device Status Report"). | |
27 | * | |
28 | * @author Martin, Andreas | |
29 | */ | |
30 | public class ScreenInfoCharacterPattern extends EscapeSequenceCharacterPattern { | |
31 | public ScreenInfoCharacterPattern() { | |
32 | useEscEsc = false; // stdMap and finMap don't matter here. | |
33 | } | |
34 | protected KeyStroke getKeyStrokeRaw(char first,int num1,int num2,char last,boolean bEsc) { | |
35 | if (first != '[' || last != 'R' || num1 == 0 || num2 == 0 || bEsc) { | |
36 | return null; // nope | |
37 | } | |
38 | if (num1 == 1 && num2 <= 8) { | |
39 | return null; // nope: much more likely it's an F3 with modifiers | |
40 | } | |
41 | TerminalPosition pos = new TerminalPosition(num2, num1); | |
42 | return new ScreenInfoAction(pos); // yep | |
43 | } | |
44 | ||
45 | public static ScreenInfoAction tryToAdopt(KeyStroke ks) { | |
46 | switch (ks.getKeyType()) { | |
47 | case CursorLocation: return (ScreenInfoAction)ks; | |
48 | case F3: // reconstruct position from F3's modifiers. | |
49 | int col = 1 + (ks.isAltDown() ? ALT : 0) | |
50 | + (ks.isCtrlDown() ? CTRL : 0) | |
51 | + (ks.isShiftDown()? SHIFT: 0); | |
52 | TerminalPosition pos = new TerminalPosition(col,1); | |
53 | return new ScreenInfoAction(pos); | |
54 | default: return null; | |
55 | } | |
56 | } | |
57 | ||
58 | ||
59 | } |