Mercurial > hg > terminal-chess / file comparison
comparison: src/input.c
src/input.c
- changeset 225
- 6e39f53127e9
- parent 224
- 93e0e89496fe
- child 226
- 341080f6bf34
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| 224:93e0e89496fe | 225:6e39f53127e9 |
|---|---|
| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2016 Mike Becker. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 * | |
| 28 */ | |
| 29 | |
| 30 #include "input.h" | |
| 31 #include <curses.h> | |
| 32 #include <ctype.h> | |
| 33 | |
| 34 int prompt_yesno(const char *msg) { | |
| 35 addstr(msg); | |
| 36 addstr(" (y/n)? "); | |
| 37 clrtoeol(); | |
| 38 refresh(); | |
| 39 noecho(); | |
| 40 int ch; | |
| 41 do { | |
| 42 ch = getch(); | |
| 43 } while (ch != 'y' && ch != 'n'); | |
| 44 echo(); | |
| 45 | |
| 46 return ch == 'y'; | |
| 47 } | |
| 48 | |
| 49 int asyncgetnstr(char *str, size_t *pos, size_t len) { | |
| 50 WINDOW* w = stdscr; | |
| 51 int y, x; | |
| 52 getyx(w, y, x); | |
| 53 mvwaddnstr(w, y, x, str, *pos); | |
| 54 wrefresh(w); | |
| 55 int c = wgetch(w); | |
| 56 | |
| 57 if (c != ERR) { | |
| 58 switch (c) { | |
| 59 case KEY_DOWN: | |
| 60 case '\n': | |
| 61 str[*pos] = '\0'; | |
| 62 *pos = 0; | |
| 63 waddch(w,'\n'); | |
| 64 return 1; | |
| 65 case 127: /* ASCII DEL (important for macOS) */ | |
| 66 case KEY_DC: /* DEL key (for other OS) */ | |
| 67 case KEY_BACKSPACE: | |
| 68 case KEY_LEFT: | |
| 69 if ((*pos) > 0) { | |
| 70 str[--(*pos)] = '\0'; | |
| 71 } | |
| 72 break; | |
| 73 default: | |
| 74 if (isprint(c) && *pos < len-1) { | |
| 75 str[(*pos)++] = (char) c; | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 return 0; | |
| 81 } | |
| 82 | |
| 83 int input_getmaxy(void) { | |
| 84 /* POSIX-curses-compliant wrapper for getmaxy() */ | |
| 85 int x, y; | |
| 86 getmaxyx(stdscr, y, x); | |
| 87 (void)x; | |
| 88 return y; | |
| 89 } |
