terminal-chess: src/input.c@a285ee393860

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2014 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  */

    30 #include "input.h"

    32 void init_colorpairs() {

    33     init_pair(COL_YB, COLOR_YELLOW, COLOR_BLUE);

    34     init_pair(COL_BW, COLOR_BLACK, COLOR_WHITE);

    35     init_pair(COL_WB, COLOR_WHITE, COLOR_BLACK);

    36 }

    38 int prompt_yesno(char *msg) {

    39     printw("%s (y/n)? ", msg);

    40     refresh();

    41     noecho();

    42     int ch;

    43     do {

    44         ch = getch();

    45     } while (ch != 'y' && ch != 'n');

    46     echo();

    48     return ch == 'y';

    49 }

    51 /**

    52  * Asynchronous variant of getnstr().

    53  *

    54  * Needs halfdelay mode enabled!

    55  *

    56  * Warning: you must not call this function for reading into two separate

    57  * buffers at the same time.

    58  *

    59  * Attention: the first byte of the buffer must be zero at the first call, so

    60  * the buffer pointer is initialized correctly.

    61  *

    62  * @param w the window

    63  * @param y the window y position

    64  * @param x the window x position

    65  * @param str the buffer for the read string

    66  * @param len the length of the buffer

    67  * @return 0 if reading is in progress and 1 when a complete line is read

    68  */

    69 int mvwasyncgetnstr(WINDOW* w, int y, int x, char *str, size_t len) {

    70     static size_t pos = 0;

    72     if (*str == '\0') {

    73         pos = 0;

    74     }

    76     mvwaddstr(w,y, x, str);

    77     wrefresh(w);

    78     int c = wgetch(w);

    80     if (c != ERR) {

    81         switch (c) {

    82         case '\n':

    83             str[pos] = '\0';

    84             pos = 0;

    85             return 1;

    86         case KEY_BACKSPACE:

    87         case KEY_LEFT:

    88             str[--pos] = '\0';

    89             break;

    90         default:

    91             if (c < 255 && pos < len-1) {

    92                 str[pos++] = (char) c;

    93             }

    94         }

    95     }

    97     return 0;

    98 }

Mercurial > hg > terminal-chess / file revision