1 /* $NetBSD: curses_private.h,v 1.10 2000/05/20 15:12:15 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1998-2000 Brett Lymn 5 * (blymn@baea.com.au, brett_lymn@yahoo.com.au) 6 * All rights reserved. 7 * 8 * This code has been donated to The NetBSD Foundation by the Author. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. The name of the author may not be used to endorse or promote products 16 * derived from this software withough specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * 30 */ 31 32 /* Private structure definitions for curses. */ 33 /* 34 * A window an array of __LINE structures pointed to by the 'lines' pointer. 35 * A line is an array of __LDATA structures pointed to by the 'line' pointer. 36 * 37 * IMPORTANT: the __LDATA structure must NOT induce any padding, so if new 38 * fields are added -- padding fields with *constant values* should ensure 39 * that the compiler will not generate any padding when storing an array of 40 * __LDATA structures. This is to enable consistent use of memcmp, and memcpy 41 * for comparing and copying arrays. 42 */ 43 44 struct __ldata { 45 wchar_t ch; /* Character */ 46 attr_t attr; /* Attributes */ 47 wchar_t bch; /* Background character */ 48 attr_t battr; /* Background attributes */ 49 }; 50 51 #define __LDATASIZE (sizeof(__LDATA)) 52 53 struct __line { 54 #define __ISDIRTY 0x01 /* Line is dirty. */ 55 #define __ISPASTEOL 0x02 /* Cursor is past end of line */ 56 unsigned int flags; 57 unsigned int hash; /* Hash value for the line. */ 58 int *firstchp, *lastchp; /* First and last chngd columns ptrs */ 59 int firstch, lastch; /* First and last changed columns. */ 60 __LDATA *line; /* Pointer to the line text. */ 61 }; 62 63 struct __window { /* Window structure. */ 64 struct __window *nextp, *orig; /* Subwindows list and parent. */ 65 int begy, begx; /* Window home. */ 66 int cury, curx; /* Current x, y coordinates. */ 67 int maxy, maxx; /* Maximum values for curx, cury. */ 68 short ch_off; /* x offset for firstch/lastch. */ 69 __LINE **lines; /* Array of pointers to the lines */ 70 __LINE *lspace; /* line space (for cleanup) */ 71 __LDATA *wspace; /* window space (for cleanup) */ 72 73 #define __ENDLINE 0x00000001 /* End of screen. */ 74 #define __FLUSH 0x00000002 /* Fflush(stdout) after refresh. */ 75 #define __FULLWIN 0x00000004 /* Window is a screen. */ 76 #define __IDLINE 0x00000008 /* Insert/delete sequences. */ 77 #define __SCROLLWIN 0x00000010 /* Last char will scroll window. */ 78 #define __SCROLLOK 0x00000020 /* Scrolling ok. */ 79 #define __CLEAROK 0x00000040 /* Clear on next refresh. */ 80 #define __LEAVEOK 0x00000100 /* If cursor left */ 81 #define __KEYPAD 0x00010000 /* If interpreting keypad codes */ 82 #define __NOTIMEOUT 0x00020000 /* Wait indefinitely for func keys */ 83 unsigned int flags; 84 int delay; /* delay for getch() */ 85 attr_t wattr; /* Character attributes */ 86 wchar_t bch; /* Background character */ 87 attr_t battr; /* Background attributes */ 88 }; 89 90 /* Set of attributes unset by 'me' - 'mb', 'md', 'mh', 'mk', 'mp' and 'mr'. */ 91 #define __TERMATTR \ 92 (__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT) 93 94 struct __winlist { 95 struct __window *winp; /* The window. */ 96 struct __winlist *nextp; /* Next window. */ 97 }; 98 99 /* Private functions. */ 100 #ifdef DEBUG 101 void __CTRACE(const char *fmt, ...); 102 #endif 103 int __delay(void); 104 unsigned int __hash(char *s, int len); 105 void __id_subwins(WINDOW *orig); 106 void __init_getch(void); 107 void __init_acs(void); 108 char *__longname(char *bp, char *def); /* Original BSD version */ 109 int __mvcur(int ly, int lx, int y, int x, int in_refresh); 110 int __nodelay(void); 111 int __notimeout(void); 112 char *__parse_cap(const char *, ...); 113 void __restartwin(void); 114 void __restore_colors(void); 115 void __restore_cursor_vis(void); 116 void __restore_meta_state(void); 117 void __restore_termios(void); 118 void __restore_stophandler(void); 119 void __save_termios(void); 120 void __set_color(attr_t attr); 121 void __set_stophandler(void); 122 void __set_subwin(WINDOW *orig, WINDOW *win); 123 void __startwin(void); 124 void __stop_signal_handler(int signo); 125 int __stopwin(void); 126 void __swflags(WINDOW *win); 127 int __timeout(int delay); 128 int __touchline(WINDOW *win, int y, int sx, int ex); 129 int __touchwin(WINDOW *win); 130 char *__tscroll(const char *cap, int n1, int n2); 131 void __unsetattr(int); 132 int __waddch(WINDOW *win, __LDATA *dp); 133 134 /* Private #defines. */ 135 #define min(a,b) (a < b ? a : b) 136 #define max(a,b) (a > b ? a : b) 137 138 /* Private externs. */ 139 extern int __echoit; 140 extern int __endwin; 141 extern int __pfast; 142 extern int __rawmode; 143 extern int __noqch; 144 extern attr_t __nca; 145 extern attr_t __mask_OP, __mask_ME, __mask_UE, __mask_SE; 146 extern struct __winlist *__winlistp; 147 extern WINDOW *__virtscr; 148