bluez/monitor/display.h
Sonny Sasaka a4a615c7fb monitor: Add option to force output color
Sometimes we want to force output color even when stdout is not a
terminal, for example when piping the output to a filter script and then
piping it further to a pager which can display colors.

This patch provides a general option to force whether color is on or off
(always and never), or leave btmon to decide (auto).

Reviewed-by: Daniel Winkler <danielwinkler@google.com>
2021-03-18 15:41:32 -07:00

84 lines
2.0 KiB
C

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2014 Intel Corporation
* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
#include <stdbool.h>
#include <inttypes.h>
bool use_color(void);
enum monitor_color { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER };
void set_monitor_color(enum monitor_color);
#define COLOR_OFF "\x1B[0m"
#define COLOR_BLACK "\x1B[0;30m"
#define COLOR_RED "\x1B[0;31m"
#define COLOR_GREEN "\x1B[0;32m"
#define COLOR_YELLOW "\x1B[0;33m"
#define COLOR_BLUE "\x1B[0;34m"
#define COLOR_MAGENTA "\x1B[0;35m"
#define COLOR_CYAN "\x1B[0;36m"
#define COLOR_WHITE "\x1B[0;37m"
#define COLOR_WHITE_BG "\x1B[0;47;30m"
#define COLOR_HIGHLIGHT "\x1B[1;39m"
#define COLOR_RED_BOLD "\x1B[1;31m"
#define COLOR_GREEN_BOLD "\x1B[1;32m"
#define COLOR_BLUE_BOLD "\x1B[1;34m"
#define COLOR_MAGENTA_BOLD "\x1B[1;35m"
#define COLOR_ERROR "\x1B[1;31m"
#define COLOR_WARN "\x1B[1m"
#define COLOR_INFO COLOR_OFF
#define COLOR_DEBUG COLOR_WHITE
#define FALLBACK_TERMINAL_WIDTH 80
#define print_indent(indent, color1, prefix, title, color2, fmt, args...) \
do { \
printf("%*c%s%s%s%s" fmt "%s\n", (indent), ' ', \
use_color() ? (color1) : "", prefix, title, \
use_color() ? (color2) : "", ## args, \
use_color() ? COLOR_OFF : ""); \
} while (0)
#define print_text(color, fmt, args...) \
print_indent(8, COLOR_OFF, "", "", color, fmt, ## args)
#define print_field(fmt, args...) \
print_indent(8, COLOR_OFF, "", "", COLOR_OFF, fmt, ## args)
struct bitfield_data {
uint64_t bit;
const char *str;
};
static inline uint64_t print_bitfield(int indent, uint64_t val,
const struct bitfield_data *table)
{
uint64_t mask = val;
int i;
for (i = 0; table[i].str; i++) {
if (val & (((uint64_t) 1) << table[i].bit)) {
print_field("%*c%s", indent, ' ', table[i].str);
mask &= ~(((uint64_t) 1) << table[i].bit);
}
}
return mask;
}
void set_default_pager_num_columns(int num_columns);
int num_columns(void);
void open_pager(void);
void close_pager(void);