src/window.h

   1 /* vim:tw=78:ts=8:sw=4:set ft=c:  */
   2 /*
   3     Copyright (C) 2002-2018 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 - (int)wcslen (str) / 2))
  28 #define CENTER_INT(x, n)        (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 typedef void (window_resize_func) (WIN *);
  34
  35 struct window_s
  36 {
  37   WINDOW *w;
  38   PANEL *p;
  39   int rows;
  40   int cols;
  41   int posy;
  42   int posx;
  43   char *title;
  44   /*
  45    * Function that is called when a key is pressed from game_loop(). This is
  46    * the only place where a key is gotten from. This is for the top window
  47    * (LIFO). When the function returns -1, the window is destroyed and the
  48    * top becomes top - 1.
  49    */
  50   window_func *func;
  51   window_exit_func *efunc;
  52   window_resize_func *rfunc;
  53   void *data;
  54   wint_t c;
  55   int keep;
  56   int freedata;                 // Whether or not to free() .data when destroying
  57 };
  58
  59 WIN **wins;
  60 wint_t pushkey;
  61
  62 WIN *window_create (const char *title, int h, int w, int y, int x,
  63                     window_func, void *data, window_exit_func,
  64                     window_resize_func);
  65 void window_destroy (WIN *);
  66 void window_draw_title (WINDOW *, const char *, int, chtype, chtype);
  67 void window_draw_prompt (WINDOW *, int, int, const char *, chtype);
  68 void window_resize_all ();
  69
  70 #endif