1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* Common functions for the Microsoft Windows and Cygwin builds.
Copyright (C) 2018-2020 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include "lisp.h"
#include "w32common.h"
static Lisp_Object ATTRIBUTE_FORMAT_PRINTF (1, 2)
format_string (char const *format, ...)
{
va_list args;
va_start (args, format);
Lisp_Object str = vformat_string (format, args);
va_end (args);
return str;
}
DEFUN ("w32-battery-status", Fw32_battery_status, Sw32_battery_status, 0, 0, 0,
doc: /* Get power status information from Windows system.
The following %-sequences are provided:
%L AC line status (verbose)
%B Battery status (verbose)
%b Battery status, empty means high, `-' means low,
`!' means critical, and `+' means charging
%p Battery load percentage
%s Remaining time (to charge or discharge) in seconds
%m Remaining time (to charge or discharge) in minutes
%h Remaining time (to charge or discharge) in hours
%t Remaining time (to charge or discharge) in the form `h:min' */)
(void)
{
Lisp_Object status = Qnil;
SYSTEM_POWER_STATUS system_status;
if (GetSystemPowerStatus (&system_status))
{
Lisp_Object line_status, battery_status, battery_status_symbol;
Lisp_Object load_percentage, seconds, minutes, hours, remain;
long seconds_left = (long) system_status.BatteryLifeTime;
if (system_status.ACLineStatus == 0)
line_status = build_string ("off-line");
else if (system_status.ACLineStatus == 1)
line_status = build_string ("on-line");
else
line_status = build_string ("N/A");
if (system_status.BatteryFlag & 128)
{
battery_status = build_string ("N/A");
battery_status_symbol = empty_unibyte_string;
}
else if (system_status.BatteryFlag & 8)
{
battery_status = build_string ("charging");
battery_status_symbol = build_string ("+");
if (system_status.BatteryFullLifeTime != -1L)
seconds_left = system_status.BatteryFullLifeTime - seconds_left;
}
else if (system_status.BatteryFlag & 4)
{
battery_status = build_string ("critical");
battery_status_symbol = build_string ("!");
}
else if (system_status.BatteryFlag & 2)
{
battery_status = build_string ("low");
battery_status_symbol = build_string ("-");
}
else if (system_status.BatteryFlag & 1)
{
battery_status = build_string ("high");
battery_status_symbol = empty_unibyte_string;
}
else
{
battery_status = build_string ("medium");
battery_status_symbol = empty_unibyte_string;
}
if (system_status.BatteryLifePercent > 100)
load_percentage = build_string ("N/A");
else
load_percentage = format_string ("%d", system_status.BatteryLifePercent);
if (seconds_left < 0)
seconds = minutes = hours = remain = build_string ("N/A");
else
{
long m = seconds_left / 60;
seconds = format_string ("%ld", seconds_left);
minutes = format_string ("%ld", m);
hours = format_string ("%3.1f", seconds_left / 3600.0);
remain = format_string ("%ld:%02ld", m / 60, m % 60);
}
status = list (Fcons (make_fixnum ('L'), line_status),
Fcons (make_fixnum ('B'), battery_status),
Fcons (make_fixnum ('b'), battery_status_symbol),
Fcons (make_fixnum ('p'), load_percentage),
Fcons (make_fixnum ('s'), seconds),
Fcons (make_fixnum ('m'), minutes),
Fcons (make_fixnum ('h'), hours),
Fcons (make_fixnum ('t'), remain));
}
return status;
}
void
syms_of_w32cygwinx (void)
{
defsubr (&Sw32_battery_status);
}
|
