Tue, 08 Apr 2014 21:13:28 +0200
fixed some type bugs, uninitialized memory and async input function
universe@3 | 1 | /* |
universe@3 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@3 | 3 | * |
universe@3 | 4 | * Copyright 2014 Mike Becker. All rights reserved. |
universe@3 | 5 | * |
universe@3 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@3 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@3 | 8 | * |
universe@3 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@3 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@3 | 11 | * |
universe@3 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@3 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@3 | 14 | * documentation and/or other materials provided with the distribution. |
universe@3 | 15 | * |
universe@3 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@3 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@3 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@3 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@3 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@3 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@3 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@3 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@3 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@3 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@3 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@3 | 27 | * |
universe@3 | 28 | */ |
universe@3 | 29 | |
universe@3 | 30 | #include "input.h" |
universe@31 | 31 | #include <ctype.h> |
universe@3 | 32 | |
universe@7 | 33 | void init_colorpairs() { |
universe@7 | 34 | init_pair(COL_YB, COLOR_YELLOW, COLOR_BLUE); |
universe@7 | 35 | init_pair(COL_BW, COLOR_BLACK, COLOR_WHITE); |
universe@7 | 36 | init_pair(COL_WB, COLOR_WHITE, COLOR_BLACK); |
universe@7 | 37 | } |
universe@7 | 38 | |
universe@7 | 39 | int prompt_yesno(char *msg) { |
universe@7 | 40 | printw("%s (y/n)? ", msg); |
universe@7 | 41 | refresh(); |
universe@3 | 42 | noecho(); |
universe@3 | 43 | int ch; |
universe@3 | 44 | do { |
universe@3 | 45 | ch = getch(); |
universe@3 | 46 | } while (ch != 'y' && ch != 'n'); |
universe@3 | 47 | echo(); |
universe@3 | 48 | |
universe@3 | 49 | return ch == 'y'; |
universe@3 | 50 | } |
universe@30 | 51 | |
universe@30 | 52 | /** |
universe@30 | 53 | * Asynchronous variant of getnstr(). |
universe@30 | 54 | * |
universe@30 | 55 | * Needs halfdelay mode enabled! |
universe@30 | 56 | * |
universe@30 | 57 | * Warning: you must not call this function for reading into two separate |
universe@30 | 58 | * buffers at the same time. |
universe@30 | 59 | * |
universe@30 | 60 | * Attention: the first byte of the buffer must be zero at the first call, so |
universe@30 | 61 | * the buffer pointer is initialized correctly. |
universe@30 | 62 | * |
universe@30 | 63 | * @param w the window |
universe@30 | 64 | * @param y the window y position |
universe@30 | 65 | * @param x the window x position |
universe@30 | 66 | * @param str the buffer for the read string |
universe@30 | 67 | * @param len the length of the buffer |
universe@30 | 68 | * @return 0 if reading is in progress and 1 when a complete line is read |
universe@30 | 69 | */ |
universe@30 | 70 | int mvwasyncgetnstr(WINDOW* w, int y, int x, char *str, size_t len) { |
universe@30 | 71 | static size_t pos = 0; |
universe@30 | 72 | |
universe@30 | 73 | if (*str == '\0') { |
universe@31 | 74 | memset(str, 0, len); |
universe@30 | 75 | pos = 0; |
universe@30 | 76 | } |
universe@30 | 77 | |
universe@30 | 78 | mvwaddstr(w,y, x, str); |
universe@30 | 79 | wrefresh(w); |
universe@30 | 80 | int c = wgetch(w); |
universe@30 | 81 | |
universe@30 | 82 | if (c != ERR) { |
universe@30 | 83 | switch (c) { |
universe@30 | 84 | case '\n': |
universe@30 | 85 | str[pos] = '\0'; |
universe@30 | 86 | pos = 0; |
universe@30 | 87 | return 1; |
universe@30 | 88 | case KEY_BACKSPACE: |
universe@30 | 89 | case KEY_LEFT: |
universe@30 | 90 | str[--pos] = '\0'; |
universe@30 | 91 | break; |
universe@30 | 92 | default: |
universe@31 | 93 | if (isprint(c) && pos < len-1) { |
universe@30 | 94 | str[pos++] = (char) c; |
universe@30 | 95 | } |
universe@30 | 96 | } |
universe@30 | 97 | } |
universe@30 | 98 | |
universe@30 | 99 | return 0; |
universe@30 | 100 | } |