curses_private.h revision 1.6 1 /* $NetBSD: curses_private.h,v 1.6 2000/04/24 14:09:43 blymn Exp $ */
2
3 /*-
4 * Copyright (c) 1998-2000 Brett Lymn
5 * (blymn (at) baea.com.au, brett_lymn (at) 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 #define __FORCEPAINT 0x04 /* Force a repaint of the line */
57 unsigned int flags;
58 unsigned int hash; /* Hash value for the line. */
59 int *firstchp, *lastchp; /* First and last chngd columns ptrs */
60 int firstch, lastch; /* First and last changed columns. */
61 __LDATA *line; /* Pointer to the line text. */
62 };
63
64 struct __window { /* Window structure. */
65 struct __window *nextp, *orig; /* Subwindows list and parent. */
66 int begy, begx; /* Window home. */
67 int cury, curx; /* Current x, y coordinates. */
68 int maxy, maxx; /* Maximum values for curx, cury. */
69 short ch_off; /* x offset for firstch/lastch. */
70 __LINE **lines; /* Array of pointers to the lines */
71 __LINE *lspace; /* line space (for cleanup) */
72 __LDATA *wspace; /* window space (for cleanup) */
73
74 #define __ENDLINE 0x00000001 /* End of screen. */
75 #define __FLUSH 0x00000002 /* Fflush(stdout) after refresh. */
76 #define __FULLWIN 0x00000004 /* Window is a screen. */
77 #define __IDLINE 0x00000008 /* Insert/delete sequences. */
78 #define __SCROLLWIN 0x00000010 /* Last char will scroll window. */
79 #define __SCROLLOK 0x00000020 /* Scrolling ok. */
80 #define __CLEAROK 0x00000040 /* Clear on next refresh. */
81 #define __LEAVEOK 0x00000100 /* If cursor left */
82 #define __KEYPAD 0x00010000 /* If interpreting keypad codes */
83 #define __NOTIMEOUT 0x00020000 /* Wait indefinitely for func keys */
84 unsigned int flags;
85 int delay; /* delay for getch() */
86 attr_t wattr; /* Character attributes */
87 wchar_t bch; /* Background character */
88 attr_t battr; /* Background attributes */
89 };
90
91 /* Set of attributes unset by 'me' - 'mb', 'md', 'mh', 'mk', 'mp' and 'mr'. */
92 #define __TERMATTR \
93 (__REVERSE | __BLINK | __DIM | __BOLD | __BLANK | __PROTECT)
94
95 struct __winlist {
96 struct __window *winp; /* The window. */
97 struct __winlist *nextp; /* Next window. */
98 };
99
100 /* Private functions. */
101 #ifdef DEBUG
102 void __CTRACE(const char *fmt, ...);
103 #endif
104 int __delay(void);
105 unsigned int __hash(char *s, int len);
106 void __id_subwins(WINDOW *orig);
107 void __init_getch(char *sp);
108 void __init_acs(void);
109 char *__longname(char *bp, char *def); /* Original BSD version */
110 int __mvcur(int ly, int lx, int y, int x, int in_refresh);
111 int __nodelay(void);
112 int __notimeout(void);
113 char *__parse_cap(const char *, ...);
114 void __restartwin(void);
115 void __restore_colors(void);
116 void __restore_cursor_vis(void);
117 void __restore_meta_state(void);
118 void __restore_termios(void);
119 void __restore_stophandler(void);
120 void __save_termios(void);
121 void __set_color(attr_t attr);
122 void __set_stophandler(void);
123 void __set_subwin(WINDOW *orig, WINDOW *win);
124 void __startwin(void);
125 void __stop_signal_handler(int signo);
126 int __stopwin(void);
127 void __swflags(WINDOW *win);
128 int __timeout(int delay);
129 int __touchline(WINDOW *win, int y, int sx, int ex, int force);
130 int __touchwin(WINDOW *win);
131 char *__tscroll(const char *cap, int n1, int n2);
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 struct __winlist *__winlistp;
146