dockapps/wmacpi/wmacpi-ng.c
Doug Torrance df54026a62 wmacpi: Bump to wmacpi-ng version 0.92.
Source obtained from http://sourceforge.net/projects/wmacpi/files/.

2003 September 23 0.92
	Fix a few more bugs, and include an option to allow the user to
	specify how often to sample the ACPI data - some BIOSes disable
	all interrupts while reading from the battery, which apparently
	causes some interactivity issues. I have no idea why reading once
	every three seconds (which is our default), but there've been some
	complaints.
2014-08-19 18:13:56 +01:00

806 lines
21 KiB
C

/* apm/acpi dockapp - phear it 1.34
* Copyright (C) 2000, 2001, 2002 timecop@japan.co.jp
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <getopt.h>
#include <unistd.h>
#include <time.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/shape.h>
#include <X11/xpm.h>
#include "libacpi.h"
#include "wmacpi-ng.h"
#define WMACPI_NG_VER "0.90"
/* main pixmap */
#ifdef LOW_COLOR
#include "master_low.xpm"
#else
#include "master.xpm"
#endif
typedef struct {
Display *display; /* X11 display struct */
int screen; /* current screen */
Window root; /* root window */
Window win; /* one window */
Window iconwin; /* another one */
Pixmap pixmap; /* UI pixmap, window pixmap */
Pixmap mask; /* mask pixmap for shape */
GC gc; /* main drawing GC */
Pixmap text; /* pixmap for text scroller */
int tw; /* text width inside text pixmap */
int update; /* need to redraw? */
int blink; /* should we blink the LED? (critical battery) */
} Dockapp;
/* for debug printing */
#ifdef PRO
char *state[] = { "AC", "Charging", "High", "Low", "Crit" };
#endif
/* globals */
Dockapp *dockapp;
APMInfo *apminfo;
int count = 0; /* global timer variable */
int noisy_critical = 0; /* ring xbell annoyingly if critical? */
/* Time for scroll updates */
#define DEFAULT_UPDATE 150
static int update_timeout = DEFAULT_UPDATE;
/* proto for local stuff */
static void new_window(char *name);
static int open_display(char *display);
static void redraw_window(void);
static void render_text(char *string);
static void scroll_text(int x, int y, int width, int tw, int reset);
static void display_percentage(int percent);
static void display_time(int minutes);
#define copy_xpm_area(x, y, w, h, dx, dy) \
{ \
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->pixmap, \
dockapp->gc, x, y, w, h, dx, dy); \
dockapp->update = 1; \
}
/* display AC power symbol */
static void display_power_glyph(void)
{
copy_xpm_area(67, 38, 12, 7, 6, 17);
}
/* get rid of AC power symbol */
static void kill_power_glyph(void)
{
copy_xpm_area(67, 48, 12, 7, 6, 17);
}
/* display battery symbol */
static void display_battery_glyph(void)
{
copy_xpm_area(82, 38, 12, 7, 20, 17);
}
/* get rid of battery symbol */
static void kill_battery_glyph(void)
{
copy_xpm_area(82, 48, 12, 7, 20, 17);
}
/* clear the time display */
static void clear_time_display(void)
{
copy_xpm_area(114, 76, 31, 11, 7, 32);
}
/* set time display to -- -- */
static void invalid_time_display(void)
{
copy_xpm_area(122, 13, 31, 11, 7, 32);
}
static void redraw_window(void)
{
if (dockapp->update) {
eprint(0, "redrawing window");
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->iconwin,
dockapp->gc, 0, 0, 64, 64, 0, 0);
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->win,
dockapp->gc, 0, 0, 64, 64, 0, 0);
dockapp->update = 0;
}
}
static void new_window(char *name)
{
XpmAttributes attr;
Pixel fg, bg;
XGCValues gcval;
XSizeHints sizehints;
XClassHint classhint;
XWMHints wmhints;
dockapp->screen = DefaultScreen(dockapp->display);
dockapp->root = DefaultRootWindow(dockapp->display);
sizehints.flags = USSize;
sizehints.width = 64;
sizehints.height = 64;
fg = BlackPixel(dockapp->display, dockapp->screen);
bg = WhitePixel(dockapp->display, dockapp->screen);
dockapp->win = XCreateSimpleWindow(dockapp->display, dockapp->root,
0, 0, sizehints.width,
sizehints.height, 1, fg, bg);
dockapp->iconwin =
XCreateSimpleWindow(dockapp->display, dockapp->win, 0, 0,
sizehints.width, sizehints.height, 1, fg, bg);
XSetWMNormalHints(dockapp->display, dockapp->win, &sizehints);
classhint.res_name = name;
classhint.res_class = name;
XSetClassHint(dockapp->display, dockapp->win, &classhint);
XSelectInput(dockapp->display, dockapp->win,
ExposureMask | ButtonPressMask | ButtonReleaseMask |
StructureNotifyMask);
XSelectInput(dockapp->display, dockapp->iconwin,
ExposureMask | ButtonPressMask | ButtonReleaseMask |
StructureNotifyMask);
XStoreName(dockapp->display, dockapp->win, name);
XSetIconName(dockapp->display, dockapp->win, name);
gcval.foreground = fg;
gcval.background = bg;
gcval.graphics_exposures = False;
dockapp->gc =
XCreateGC(dockapp->display, dockapp->win,
GCForeground | GCBackground | GCGraphicsExposures,
&gcval);
attr.exactColors = 0;
attr.alloc_close_colors = 1;
attr.closeness = 1L << 15;
attr.valuemask = XpmExactColors | XpmAllocCloseColors | XpmCloseness;
if (XpmCreatePixmapFromData(dockapp->display, dockapp->win,
master_xpm, &dockapp->pixmap,
&dockapp->mask, &attr) != XpmSuccess) {
fprintf(stderr, "FATAL: Not enough colors for main pixmap!\n");
exit(1);
}
/* text area is 318x7, or 53 characters long */
dockapp->text = XCreatePixmap(dockapp->display, dockapp->win, 318, 7,
DefaultDepth(dockapp->display,
dockapp->screen));
if (!dockapp->text) {
fprintf(stderr, "FATAL: Cannot create text scroll pixmap!\n");
exit(1);
}
XShapeCombineMask(dockapp->display, dockapp->win, ShapeBounding, 0, 0,
dockapp->mask, ShapeSet);
XShapeCombineMask(dockapp->display, dockapp->iconwin, ShapeBounding, 0,
0, dockapp->mask, ShapeSet);
wmhints.initial_state = WithdrawnState;
wmhints.flags = StateHint;
wmhints.icon_window = dockapp->iconwin;
wmhints.icon_x = sizehints.x;
wmhints.icon_y = sizehints.y;
wmhints.window_group = dockapp->win;
wmhints.flags =
StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
XSetWMHints(dockapp->display, dockapp->win, &wmhints);
XMapWindow(dockapp->display, dockapp->win);
}
static void render_text(char *string)
{
int i, c, k;
if (strlen(string) > 53)
return;
eprint(0, "rendering: %s", string);
/* prepare the text area by clearing it */
for (i = 0; i < 54; i++) {
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, 133, 57, 6, 8, i * 6, 0);
}
k = 0;
for (i = 0; string[i]; i++) {
c = toupper(string[i]);
if (c >= 'A' && c <= 'Z') { /* letter */
c = c - 'A';
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, c * 6, 67, 6, 7, k, 0);
} else if (c >= '0' && c <= '9') { /* number */
c = c - '0';
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, c * 6 + 66, 58, 6, 7, k, 0);
} else if (c == '.') {
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, 140, 58, 6, 7, k, 0);
} else if (c == '-') {
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, 126, 58, 6, 7, k, 0);
}
k += 6;
}
dockapp->tw = k; /* length of text segment */
/* re-scroll the message */
scroll_text(6, 50, 52, dockapp->tw, 1);
/* reset the scroll repeat counter */
count = 0;
}
static int open_display(char *display)
{
dockapp->display = XOpenDisplay(display);
if (!dockapp->display) {
fprintf(stderr, "Unable to open display '%s'\n", display);
return 1;
}
return 0;
}
static void scroll_text(int x, int y, int width, int tw, int reset)
{
static int pos, first, stop;
if (reset) {
pos = 0;
first = 0;
stop = 0;
XCopyArea(dockapp->display, dockapp->pixmap, dockapp->text,
dockapp->gc, 0, 0, width, 7, x, y);
}
if (stop) {
return;
}
if ((first == 0) && pos == 0) {
pos = width;
first = 1;
}
if (pos == (0 - tw - 2)) {
first = 1;
pos = width;
stop = 1;
return;
}
pos -= 2;
if (pos > 0) {
copy_xpm_area(66, 9, pos, 7, x, y); /* clear */
XCopyArea(dockapp->display, dockapp->text, dockapp->pixmap,
dockapp->gc, 0, 0, width - pos, 7, x + pos, y);
} else { /* don't need to clear, already in text */
XCopyArea(dockapp->display, dockapp->text, dockapp->pixmap,
dockapp->gc, abs(pos), 0, width, 7, x, y);
}
dockapp->update = 1;
}
static void display_percentage(int percent)
{
static int op = -1;
static unsigned int obar;
unsigned int bar;
eprint(0, "received: %d\n", percent);
if (percent == -1)
percent = 0;
if (op == percent)
return;
if (percent < 0)
percent = 0;
if (percent > 100)
percent = 100;
if (percent < 100) { /* 0 - 99 */
copy_xpm_area(95, 48, 8, 7, 37, 17);
if (percent >= 10)
copy_xpm_area((percent / 10) * 6 + 67, 28, 5, 7, 40, 17);
copy_xpm_area((percent % 10) * 6 + 67, 28, 5, 7, 46, 17);
} else
copy_xpm_area(95, 37, 21, 9, 37, 16); /* 100% */
op = percent;
bar = percent / 1.8518;
if (bar == obar)
return;
copy_xpm_area(66, 0, bar, 8, 5, 5);
if (bar < 54)
copy_xpm_area(66 + bar, 18, 54 - bar, 8, bar + 5, 5);
obar = bar;
}
static void display_time(int minutes)
{
static int ohour = -1, omin = -1;
int hour, min, tmp;
if (minutes <= 0) { /* error - clear the display */
invalid_time_display();
ohour = omin = -1;
return;
}
/* render time on the display */
hour = minutes / 60;
/* our display area only fits %2d:%2d, so we need to make sure
* what we're displaying will fit in those constraints. I don't
* think we're likely to see any batteries that do more than
* 100 hours any time soon, so it's fairly safe. */
if (hour >= 100) {
hour = 99;
min = 59;
} else
min = minutes % 60;
if (hour == ohour && min == omin)
return;
eprint(0, "redrawing time");
tmp = hour / 10;
copy_xpm_area(tmp * 7 + 1, 76, 6, 11, 7, 32);
tmp = hour % 10;
copy_xpm_area(tmp * 7 + 1, 76, 6, 11, 14, 32);
tmp = min / 10;
copy_xpm_area(tmp * 7 + 1, 76, 6, 11, 25, 32);
tmp = min % 10;
copy_xpm_area(tmp * 7 + 1, 76, 6, 11, 32, 32);
copy_xpm_area(71, 76, 3, 11, 21, 32);
ohour = hour;
omin = min;
}
/*
* The reworked state handling stuff.
*/
/* set the current state of the power panel */
enum panel_states {
PS_AC,
PS_BATT,
PS_NULL,
};
static void really_blink_power_glyph(void)
{
static int counter = 0;
if (counter == 10)
display_power_glyph();
else if (counter == 20)
kill_power_glyph();
else if (counter > 30)
counter = 0;
counter++;
}
static void blink_power_glyph(void)
{
if (dockapp->blink)
really_blink_power_glyph();
}
static void really_blink_battery_glyph(void)
{
static int counter = 0;
if (counter == 10)
display_battery_glyph();
else if (counter == 20)
kill_battery_glyph();
else if (counter > 30)
counter = 0;
counter++;
}
static void blink_battery_glyph(void)
{
if (dockapp->blink)
really_blink_battery_glyph();
}
static void set_power_panel(void)
{
enum panel_states power = PS_NULL;
battery_t *binfo = apminfo->binfo;
adapter_t *ap = &apminfo->adapter;
if (ap->power == AC) {
if (power != PS_AC) {
power = PS_AC;
kill_battery_glyph();
display_power_glyph();
}
} else if (ap->power == BATT) {
if (power != PS_BATT) {
power = PS_BATT;
kill_power_glyph();
display_battery_glyph();
}
}
if (binfo->charge_state == CHARGE)
blink_power_glyph();
if (binfo->state == CRIT)
blink_battery_glyph();
if (binfo->state == HARD_CRIT)
really_blink_battery_glyph();
}
/*
* The message that needs to be displayed needs to be decided
* according to a heirarchy: a message like not present needs to take
* precedence over a global thing like the current power status, and
* something like a low battery warning should take precedence over
* the "on battery" message. Likewise, a battery charging message
* needs to take precedence over the on ac power message. The other
* question is how much of a precedence local messages should take
* over global ones . . .
*
* So, there are three possible sets of messages: not present, on-line
* and off-line messages. We need to decide which of those sets is
* appropriate right now, and then decide within them.
*/
enum messages {
M_NP, /* not present */
M_AC, /* on ac power */
M_CH, /* battery charging */
M_BATT, /* on battery */
M_LB, /* low battery */
M_CB, /* critical low battery */
M_HCB, /* battery reported critical capacity state */
M_NULL, /* empty starting state */
};
static void set_message(void)
{
static enum messages state = M_NULL;
battery_t *binfo = apminfo->binfo;
adapter_t *ap = &apminfo->adapter;
/* battery not present case */
if (!binfo->present) {
if (state != M_NP) {
state = M_NP;
render_text("not present");
}
} else if (ap->power == AC) {
if (binfo->charge_state == CHARGE) {
if (state != M_CH) {
state = M_CH;
update_timeout = DEFAULT_UPDATE;
render_text("battery charging");
}
} else {
if (state != M_AC) {
state = M_AC;
update_timeout = DEFAULT_UPDATE;
render_text("on ac power");
}
}
} else {
if (binfo->state == CRIT) {
if (state != M_CB) {
state = M_CB;
update_timeout = 80;
render_text("critical low battery");
}
} else if (binfo->state == HARD_CRIT) {
if (state != M_HCB) {
state = M_HCB;
update_timeout = 60;
render_text("hard critical low battery");
}
} else if (binfo->state == LOW) {
if (state != M_LB) {
state = M_LB;
update_timeout = 100;
render_text("low battery");
}
} else {
if (state != M_BATT) {
state = M_BATT;
update_timeout = DEFAULT_UPDATE;
render_text("on battery");
}
}
}
}
void set_time_display(void)
{
battery_t *binfo = &batteries[battery_no];
if (binfo->charge_state == CHARGE)
display_time(binfo->charge_time);
else if (binfo->charge_state == DISCHARGE)
display_time(apminfo->rtime);
else
invalid_time_display();
}
/*
* This should really be fixed so that it can handle more than two batteries.
*/
void set_id_1(void)
{
copy_xpm_area(118, 38, 15, 15, 44, 30);
}
void set_id_2(void)
{
copy_xpm_area(136, 38, 15, 15, 44, 30);
}
void set_batt_id_area(int bno)
{
switch(bno) {
case 0:
set_id_1();
break;
case 1:
set_id_2();
break;
}
}
void usage(char *name)
{
printf("%s - help\t\t[timecop@japan.co.jp]\n\n"
"-d display\t\tdisplay on remote display <display>\n"
"-b\t\t\tmake noise when battery is critical low (beep)\n"
"-c value\t\tset critical low alarm at <value> percent\n"
"\t\t\t(default: 10 percent)\n"
"-m <battery number>\tbattery number to monitor\n"
"-v\t\t\tincrease verbosity.\n"
"-h\t\t\tdisplay this help\n",
name);
}
void print_version(void)
{
printf("wmacpi-ng version %s\n", WMACPI_NG_VER);
printf(" Using libacpi version %s\n", LIBACPI_VER);
}
int main(int argc, char **argv)
{
char *display = NULL;
char ch;
int update = 0;
int samplerate = 100;
battery_t *binfo;
dockapp = calloc(1, sizeof(Dockapp));
apminfo = calloc(1, sizeof(APMInfo));
dockapp->blink = 1;
apminfo->crit_level = 10;
battery_no = 1;
/* see if whatever we want to use is supported */
if (power_init())
/* power_init functions handle printing error messages */
exit(1);
/* parse command-line options */
while ((ch = getopt(argc, argv, "bd:c:m:s:hnvV")) != EOF) {
switch (ch) {
case 'b':
noisy_critical = 1;
break;
case 'c':
if (optarg) {
apminfo->crit_level = atoi(optarg);
if ((apminfo->crit_level < 0) || (apminfo->crit_level > 100)) {
fprintf(stderr, "Please use values between 0 and 100%%\n");
apminfo->crit_level = 10;
fprintf(stderr, "Using default value of 10%%\n");
}
}
break;
case 'd':
if (optarg)
display = strdup(optarg);
break;
case 'm':
if (optarg) {
battery_no = atoi(optarg);
if (battery_no >= MAXBATT) {
fprintf(stderr, "Please specify a battery number below %d\n",
MAXBATT);
return 1;
}
if (battery_no > batt_count) {
fprintf(stderr, "Battery %d does not appear to be installed\n",
battery_no);
return 1;
}
fprintf(stderr, "Monitoring battery %d\n", battery_no);
}
break;
case 's':
if (optarg) {
samplerate = atoi(optarg);
if (samplerate == 0) samplerate = 1;
if (samplerate > 3000) samplerate = 3000;
} else {
usage(argv[0]);
exit(1);
}
break;
case 'h':
usage(argv[0]);
return 0;
case 'v':
verbosity++;
break;
case 'V':
print_version();
return 0;
case 'n':
dockapp->blink = 0;
break;
default:
usage(argv[0]);
return 1;
}
}
battery_no--;
/* open local or command-line specified display */
if (open_display(display))
exit(1);
/* make new dockapp window */
/* Don't even /think/ of asking me why, but if I set the window name to
* "acpi", the app refuses to dock properly - it's just plain /weird/ */
/* new_window("acpi"); */
new_window("apm");
/* get initial statistics */
acquire_all_info();
binfo = &batteries[battery_no];
apminfo->binfo = binfo;
fprintf(stderr, "monitoring battery %s\n", binfo->name);
clear_time_display();
set_power_panel();
set_message();
set_batt_id_area(battery_no);
/* main loop */
while (1) {
XEvent event;
while (XPending(dockapp->display)) {
eprint(0, "X11 activity");
XNextEvent(dockapp->display, &event);
switch (event.type) {
case Expose:
/* update */
dockapp->update = 1;
while (XCheckTypedEvent(dockapp->display, Expose, &event));
redraw_window();
break;
case DestroyNotify:
XCloseDisplay(dockapp->display);
exit(0);
break;
case ButtonPress:
break;
case ButtonRelease:
/* cycle through the known batteries. */
battery_no++;
battery_no = battery_no % batt_count;
apminfo->binfo = &batteries[battery_no];
binfo = apminfo->binfo;
fprintf(stderr, "changing to monitor battery %d\n", battery_no + 1);
set_batt_id_area(battery_no);
break;
}
}
/* XXX: some laptops have problems with sampling the battery
* regularly - apparently, the BIOS disables interrupts while
* reading from the battery, which is generally on a slow bus
* and is a slow device, so you get significant periods without
* interrupts. This causes interactivity to suffer . . .
*
* My proposed workaround is to allow the user to set the sample
* rate - it defaults to ten, but can be set lower (or higher).
*
* The only problem with this is that we need to sample less
* frequently, while still allowing the app to update normally.
* That means calling redraw_window() and all the set_*() functions
* normally, but only calling acquire_all_info() every so often.
* As it stands, we only call acquire_all_info() once every three
* seconds (once every thirty updates) . . . I'm not entirely sure
* /how/ this could cause interactivity problems, but hey . . .
*
* So, given the base rate of once every three seconds, we want to
* change this test to . . . */
if (update++ == (3000/samplerate)) {
acquire_all_info();
update = 0;
}
if (count++ == update_timeout) {
scroll_text(6, 50, 52, dockapp->tw, 1);
count = 0;
}
/* the old code had some kind of weird crap with timers and the like.
* As far as I can tell, it's meaningless - the time we want to display
* is the time calculated from the remaining capacity, as per the
* ACPI spec. The only thing I'd change is the handling of a charging
* state: my best guess, based on the behaviour I'm seeing with my
* Lifebook, is that the present rate value when charging is the rate
* at which the batteries are being charged, which would mean I'd just
* need to reverse the rtime calculation to be able to work out how
* much time remained until the batteries were fully charged . . .
* That would be rather useful, though given it would vary rather a lot
* it seems likely that it'd be little more than a rough guesstimate. */
set_time_display();
set_power_panel();
set_message();
display_percentage(binfo->percentage);
scroll_text(6, 50, 52, dockapp->tw, 0);
/* redraw_window, if anything changed - determined inside
* redraw_window. */
redraw_window();
usleep(100000);
}
return 0;
}