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A Battery meter for X11 written in pure Xlib.

License: GNU General Public License v3.0

Makefile 1.90% C 98.10%

battery-meter's Introduction

battery-meter

A Battery meter for X11 written in pure Xlib.

why

I was putting together a minimal X11 environment on my smaller Thinkpad T61 laptop based around twm and Xaw. I wanted a simple battery meter, so I wrote one.

usage

bm <xpos> <ypos> <width> <height>

xpos = the X pixel position on screen
ypos = the Y pixel position on screen
width = the width of the battery bar, in pixels
height = the height of the battery bar, in pixels

example

On my Thinkpad T61 with 1280x800 display, putting close to lower right, next to my clock (as in the screenshot)

bm 840 766 256 16

license

Licensed under GPL v. 3, see LICENSE file for details.

author

Thomas Cherryhomes <thom.cherryhomes at gmail.com>

battery-meter's People

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battery-meter's Issues

WSL1 XGetGeometry crash

(gdb) r 10 10 10 10
Starting program: /home/stefan/g/battery-meter/bm 10 10 10 10
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007fffff6789a6 in XGetGeometry () from /usr/lib/x86_64-linux-gnu/libX11.so.6
(gdb) bt
#0  0x00007fffff6789a6 in XGetGeometry () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#1  0x0000000008001490 in handle_expose () at bm.c:85
#2  0x0000000008001891 in main (argc=5, argv=0x7ffffffee1d8) at bm.c:152

FYI

/sys/class/power_supply/
|-- ac
|   |-- online
|   `-- type
|-- battery
|   |-- capacity
|   |-- charge_counter
|   |-- current_now
|   |-- health
|   |-- present
|   |-- status
|   |-- technology
|   |-- temp
|   |-- type
|   `-- voltage_now
`-- usb
    |-- online
    `-- type

Minor clang warnings

cc -obm -I/opt/X11/include -L/opt/X11/lib -O2 bm.c -lX11
bm.c:85:47: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
  XGetGeometry(display, win, winRoot, &x, &y, &w, &h, &bw, &de);
                                              ^~
/opt/X11/include/X11/Xlib.h:2640:37: note: passing argument to parameter here
    unsigned int*       /* width_return */,
                                          ^
bm.c:85:51: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
  XGetGeometry(display, win, winRoot, &x, &y, &w, &h, &bw, &de);
                                                  ^~
/opt/X11/include/X11/Xlib.h:2641:38: note: passing argument to parameter here
    unsigned int*       /* height_return */,
                                           ^
bm.c:85:55: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
  XGetGeometry(display, win, winRoot, &x, &y, &w, &h, &bw, &de);
                                                      ^~~
/opt/X11/include/X11/Xlib.h:2642:44: note: passing argument to parameter here
    unsigned int*       /* border_width_return */,
                                                 ^
bm.c:85:60: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
  XGetGeometry(display, win, winRoot, &x, &y, &w, &h, &bw, &de);
                                                           ^~~
/opt/X11/include/X11/Xlib.h:2644:1: note: passing argument to parameter here
);
^
4 warnings generated.

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