src/window.h

   1 /* vim:tw=78:ts=8:sw=4:set ft=c:  */
   2 /*
   3     Copyright (C) 2002-2015 Ben Kibbey <bjk@luxsci.net>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 */
  19 #ifndef WINDOW_H
  20 #define WINDOW_H
  21
  22 #define WINDOW_TIMEOUT          70
  23 #define CTRL_KEY(x)             ((x) & 0x1f)
  24 #define KEY_ESCAPE              CTRL_KEY('[')
  25 #define CALCPOSY(y)             ((y > LINES - 1) ? 0 : LINES / 2 - y / 2)
  26 #define CALCPOSX(x)             (COLS / 2 - x / 2)
  27 #define CENTERX(x, str)         abs((x / 2 - wcslen (str) / 2))
  28 #define CENTER_INT(x, n)        abs((x / 2 - n / 2))
  29
  30 typedef struct window_s WIN;
  31 typedef int (window_func) (WIN *);
  32 typedef void (window_exit_func) (WIN *);
  33
  34 struct window_s {
  35     WINDOW *w;
  36     PANEL *p;
  37     int rows;
  38     int cols;
  39     int posy;
  40     int posx;
  41     char *title;
  42     /*
  43      * Function that is called when a key is pressed from game_loop(). This is
  44      * the only place where a key is gotten from. This is for the top window
  45      * (LIFO). When the function returns -1, the window is destroyed and the
  46      * top becomes top - 1.
  47      */
  48     window_func *func;
  49     window_exit_func *efunc;
  50     void *data;
  51     wint_t c;
  52     int keep;
  53     int freedata; // Whether or not to free() .data when destroying
  54 };
  55
  56 WIN **wins;
  57 wint_t pushkey;
  58
  59 WIN *window_create(const char *title, int h, int w, int y, int x, window_func,
  60         void *data, window_exit_func);
  61 void window_destroy(WIN *);
  62 void window_draw_title(WINDOW *, const char *, int, chtype, chtype);
  63 void window_draw_prompt(WINDOW *, int, int, const char *, chtype);
  64
  65 #endif