1/*- 2 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#ifndef _TEKEN_H_ 30#define _TEKEN_H_ 31 32#include <sys/types.h> 33 34/* 35 * libteken: terminal emulation library. 36 * 37 * This library converts an UTF-8 stream of bytes to terminal drawing 38 * commands. 39 */ 40 41typedef uint32_t teken_char_t; 42typedef unsigned short teken_unit_t; 43typedef unsigned char teken_format_t; 44#define TF_BOLD 0x01 /* Bold character. */ 45#define TF_UNDERLINE 0x02 /* Underline character. */ 46#define TF_BLINK 0x04 /* Blinking character. */ 47#define TF_REVERSE 0x08 /* Reverse rendered character. */ 48#define TF_CJK_RIGHT 0x10 /* Right-hand side of CJK character. */ 49typedef unsigned char teken_color_t; 50#define TC_BLACK 0 51#define TC_RED 1 52#define TC_GREEN 2 53#define TC_BROWN 3 54#define TC_BLUE 4 55#define TC_MAGENTA 5 56#define TC_CYAN 6 57#define TC_WHITE 7 58#define TC_NCOLORS 8 59 60typedef struct { 61 teken_unit_t tp_row; 62 teken_unit_t tp_col; 63} teken_pos_t; 64typedef struct { 65 teken_pos_t tr_begin; 66 teken_pos_t tr_end; 67} teken_rect_t; 68typedef struct { 69 teken_format_t ta_format; 70 teken_color_t ta_fgcolor; 71 teken_color_t ta_bgcolor; 72} teken_attr_t; 73typedef struct { 74 teken_unit_t ts_begin; 75 teken_unit_t ts_end; 76} teken_span_t; 77 78typedef struct __teken teken_t; 79 80typedef void teken_state_t(teken_t *, teken_char_t); 81 82/* 83 * Drawing routines supplied by the user. 84 */ 85 86typedef void tf_bell_t(void *); 87typedef void tf_cursor_t(void *, const teken_pos_t *); 88typedef void tf_putchar_t(void *, const teken_pos_t *, teken_char_t, 89 const teken_attr_t *); 90typedef void tf_fill_t(void *, const teken_rect_t *, teken_char_t, 91 const teken_attr_t *); 92typedef void tf_copy_t(void *, const teken_rect_t *, const teken_pos_t *); 93typedef void tf_param_t(void *, int, unsigned int); 94#define TP_SHOWCURSOR 0 95#define TP_KEYPADAPP 1 96#define TP_AUTOREPEAT 2 97#define TP_SWITCHVT 3 98#define TP_132COLS 4 99#define TP_SETBELLPD 5 100#define TP_SETBELLPD_PITCH(pd) ((pd) >> 16) 101#define TP_SETBELLPD_DURATION(pd) ((pd) & 0xffff) 102#define TP_MOUSE 6 103typedef void tf_respond_t(void *, const void *, size_t); 104 105typedef struct { 106 tf_bell_t *tf_bell; 107 tf_cursor_t *tf_cursor; 108 tf_putchar_t *tf_putchar; 109 tf_fill_t *tf_fill; 110 tf_copy_t *tf_copy; 111 tf_param_t *tf_param; 112 tf_respond_t *tf_respond; 113} teken_funcs_t; 114 115typedef teken_char_t teken_scs_t(teken_t *, teken_char_t); 116 117/* 118 * Terminal state. 119 */ 120 121struct __teken { 122 const teken_funcs_t *t_funcs; 123 void *t_softc; 124 125 teken_state_t *t_nextstate; 126 unsigned int t_stateflags; 127 128#define T_NUMSIZE 8 129 unsigned int t_nums[T_NUMSIZE]; 130 unsigned int t_curnum; 131 132 teken_pos_t t_cursor; 133 teken_attr_t t_curattr; 134 teken_pos_t t_saved_cursor; 135 teken_attr_t t_saved_curattr; 136 137 teken_attr_t t_defattr; 138 teken_pos_t t_winsize; 139 140 /* For DECSTBM. */ 141 teken_span_t t_scrollreg; 142 /* For DECOM. */ 143 teken_span_t t_originreg; 144 145#define T_NUMCOL 160 146 unsigned int t_tabstops[T_NUMCOL / (sizeof(unsigned int) * 8)]; 147 148 unsigned int t_utf8_left; 149 teken_char_t t_utf8_partial; 150 151 unsigned int t_curscs; 152 teken_scs_t *t_saved_curscs; 153 teken_scs_t *t_scs[2]; 154}; 155 156/* Initialize teken structure. */ 157void teken_init(teken_t *, const teken_funcs_t *, void *); 158 159/* Deliver character input. */ 160void teken_input(teken_t *, const void *, size_t); 161 162/* Get/set teken attributes. */ 163const teken_pos_t *teken_get_cursor(teken_t *); 164const teken_attr_t *teken_get_curattr(teken_t *); 165const teken_attr_t *teken_get_defattr(teken_t *); 166void teken_get_defattr_cons25(teken_t *, int *, int *); 167const teken_pos_t *teken_get_winsize(teken_t *); 168void teken_set_cursor(teken_t *, const teken_pos_t *); 169void teken_set_curattr(teken_t *, const teken_attr_t *); 170void teken_set_defattr(teken_t *, const teken_attr_t *); 171void teken_set_winsize(teken_t *, const teken_pos_t *); 172void teken_set_winsize_noreset(teken_t *, const teken_pos_t *); 173 174/* Key input escape sequences. */ 175#define TKEY_UP 0x00 176#define TKEY_DOWN 0x01 177#define TKEY_LEFT 0x02 178#define TKEY_RIGHT 0x03 179 180#define TKEY_HOME 0x04 181#define TKEY_END 0x05 182#define TKEY_INSERT 0x06 183#define TKEY_DELETE 0x07 184#define TKEY_PAGE_UP 0x08 185#define TKEY_PAGE_DOWN 0x09 186 187#define TKEY_F1 0x0a 188#define TKEY_F2 0x0b 189#define TKEY_F3 0x0c 190#define TKEY_F4 0x0d 191#define TKEY_F5 0x0e 192#define TKEY_F6 0x0f 193#define TKEY_F7 0x10 194#define TKEY_F8 0x11 195#define TKEY_F9 0x12 196#define TKEY_F10 0x13 197#define TKEY_F11 0x14 198#define TKEY_F12 0x15 199const char *teken_get_sequence(teken_t *, unsigned int); 200 201/* Legacy features. */ 202void teken_set_8bit(teken_t *); 203void teken_set_cons25(teken_t *); 204 205/* Color conversion. */ 206teken_color_t teken_256to8(teken_color_t); 207 208#endif /* !_TEKEN_H_ */ 209