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Diffstat (limited to 'src/libsystemd-terminal/term.h')
| -rw-r--r-- | src/libsystemd-terminal/term.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/libsystemd-terminal/term.h b/src/libsystemd-terminal/term.h new file mode 100644 index 0000000000..2f2bb479cb --- /dev/null +++ b/src/libsystemd-terminal/term.h @@ -0,0 +1,146 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com> + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#pragma once + +#include <stdbool.h> +#include <stdint.h> +#include <stdlib.h> +#include "util.h" + +typedef struct term_color term_color; +typedef struct term_attr term_attr; + +typedef struct term_utf8 term_utf8; +typedef struct term_seq term_seq; +typedef struct term_parser term_parser; + +typedef struct term_screen term_screen; + +/* + * Ageing + */ + +typedef uint64_t term_age_t; + +#define TERM_AGE_NULL 0 + +/* + * Attributes + */ + +enum { + /* special color-codes */ + TERM_CCODE_DEFAULT, /* default foreground/background color */ + TERM_CCODE_256, /* 256color code */ + TERM_CCODE_RGB, /* color is specified as RGB */ + + /* dark color-codes */ + TERM_CCODE_BLACK, + TERM_CCODE_RED, + TERM_CCODE_GREEN, + TERM_CCODE_YELLOW, + TERM_CCODE_BLUE, + TERM_CCODE_MAGENTA, + TERM_CCODE_CYAN, + TERM_CCODE_WHITE, /* technically: light grey */ + + /* light color-codes */ + TERM_CCODE_LIGHT_BLACK = TERM_CCODE_BLACK + 8, /* technically: dark grey */ + TERM_CCODE_LIGHT_RED = TERM_CCODE_RED + 8, + TERM_CCODE_LIGHT_GREEN = TERM_CCODE_GREEN + 8, + TERM_CCODE_LIGHT_YELLOW = TERM_CCODE_YELLOW + 8, + TERM_CCODE_LIGHT_BLUE = TERM_CCODE_BLUE + 8, + TERM_CCODE_LIGHT_MAGENTA = TERM_CCODE_MAGENTA + 8, + TERM_CCODE_LIGHT_CYAN = TERM_CCODE_CYAN + 8, + TERM_CCODE_LIGHT_WHITE = TERM_CCODE_WHITE + 8, + + TERM_CCODE_CNT, +}; + +struct term_color { + uint8_t ccode; + uint8_t c256; + uint8_t red; + uint8_t green; + uint8_t blue; +}; + +struct term_attr { + term_color fg; /* foreground color */ + term_color bg; /* background color */ + + unsigned int bold : 1; /* bold font */ + unsigned int italic : 1; /* italic font */ + unsigned int underline : 1; /* underline text */ + unsigned int inverse : 1; /* inverse fg/bg */ + unsigned int protect : 1; /* protect from erase */ + unsigned int blink : 1; /* blink text */ + unsigned int hidden : 1; /* hidden */ +}; + +/* + * UTF-8 + */ + +struct term_utf8 { + uint32_t chars[5]; + uint32_t ucs4; + + unsigned int i_bytes : 3; + unsigned int n_bytes : 3; + unsigned int valid : 1; +}; + +size_t term_utf8_encode(char *out_utf8, uint32_t g); +const uint32_t *term_utf8_decode(term_utf8 *p, size_t *out_len, char c); + +/* + * Parsers + */ + +int term_parser_new(term_parser **out, bool host); +term_parser *term_parser_free(term_parser *parser); +int term_parser_feed(term_parser *parser, const term_seq **seq_out, uint32_t raw); + +#define _term_parser_free_ _cleanup_(term_parser_freep) +DEFINE_TRIVIAL_CLEANUP_FUNC(term_parser*, term_parser_free); + +/* + * Screens + */ + +typedef int (*term_screen_write_fn) (term_screen *screen, void *userdata, const void *buf, size_t size); +typedef int (*term_screen_cmd_fn) (term_screen *screen, void *userdata, unsigned int cmd, const term_seq *seq); + +int term_screen_new(term_screen **out, term_screen_write_fn write_fn, void *write_fn_data, term_screen_cmd_fn cmd_fn, void *cmd_fn_data); +term_screen *term_screen_ref(term_screen *screen); +term_screen *term_screen_unref(term_screen *screen); + +DEFINE_TRIVIAL_CLEANUP_FUNC(term_screen*, term_screen_unref); + +int term_screen_feed_text(term_screen *screen, const uint8_t *in, size_t size); +int term_screen_feed_keyboard(term_screen *screen, uint32_t keysym, uint32_t ascii, uint32_t ucs4, unsigned int mods); +int term_screen_resize(term_screen *screen, unsigned int width, unsigned int height); +void term_screen_soft_reset(term_screen *screen); +void term_screen_hard_reset(term_screen *screen); + +int term_screen_set_answerback(term_screen *screen, const char *answerback); |