/*-*- 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 */ }; void term_attr_to_argb32(const term_attr *attr, uint32_t *fg, uint32_t *bg, const uint8_t *palette); /* * 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); size_t term_utf8_decode(term_utf8 *p, uint32_t **out_buf, 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 */ enum { TERM_KBDMOD_IDX_SHIFT, TERM_KBDMOD_IDX_CTRL, TERM_KBDMOD_IDX_ALT, TERM_KBDMOD_IDX_LINUX, TERM_KBDMOD_IDX_CAPS, TERM_KBDMOD_CNT, TERM_KBDMOD_SHIFT = 1 << TERM_KBDMOD_IDX_SHIFT, TERM_KBDMOD_CTRL = 1 << TERM_KBDMOD_IDX_CTRL, TERM_KBDMOD_ALT = 1 << TERM_KBDMOD_IDX_ALT, TERM_KBDMOD_LINUX = 1 << TERM_KBDMOD_IDX_LINUX, TERM_KBDMOD_CAPS = 1 << TERM_KBDMOD_IDX_CAPS, }; 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); unsigned int term_screen_get_width(term_screen *screen); unsigned int term_screen_get_height(term_screen *screen); uint64_t term_screen_get_age(term_screen *screen); int term_screen_feed_text(term_screen *screen, const uint8_t *in, size_t size); int term_screen_feed_keyboard(term_screen *screen, const uint32_t *keysyms, size_t n_syms, uint32_t ascii, const 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); int term_screen_draw(term_screen *screen, int (*draw_fn) (term_screen *screen, void *userdata, unsigned int x, unsigned int y, const term_attr *attr, const uint32_t *ch, size_t n_ch, unsigned int ch_width), void *userdata, uint64_t *fb_age);