/* $Id: pgl-battery-helio.c,v 1.1 2001/08/12 00:24:40 micahjd Exp $ *  * pgl-battery-helio.c - Battery monitor applet for Helio * * PicoGUI small and efficient client/server GUI * Copyright (C) 2000 Micah Dowty <micahjd@users.sourceforge.net> * * 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. *  * Contributors: *  *  *  */#include <picogui.h>#include <stdio.h>       /* file IO for getting battery info */pghandle wBatt;void sysIdle(void) {  FILE *f;  char buf[50];  int bat_raw, bat_percent;    /* Get battery status */  f = fopen("/proc/r39xxpm","r");  if (f) {    /* I don't think the format of /proc/r39xxpm is set in stone, so     * this might break? Oh well, works for now. */    fgets(buf,50,f);  /* CPU speed */    fgets(buf,50,f);  /* Battery voltage */    fclose(f);    bat_raw = atoi(buf+9); /* Skip past "Battery: " */        /* Translate to percent, assuming 259 (2.0 volts) is empty     * and 402 (3.0 volts) is full. */    bat_percent = ((bat_raw - 259) * 100) / 143;    if (bat_percent < 0) bat_percent = 0;    if (bat_percent > 100) bat_percent = 100;        pgSetWidget(wBatt,PG_WP_VALUE,bat_percent,0);    pgFlushRequests();    pgSubUpdate(wBatt);    }}int main(int argc, char **argv) {  pghandle wPGLbar,wBattbox;  pgInit(argc,argv);  /* Find the applet container */  wPGLbar = pgFindWidget("PGL-AppletBar");  if (!wPGLbar) {    pgMessageDialog(argv[0],"This applet requires PGL",PG_MSGICON_ERROR);    return 1;  }   wBattbox = pgNewWidget(PG_WIDGET_BOX,PG_DERIVE_INSIDE,wPGLbar);  pgSetWidget(PGDEFAULT,	      PG_WP_SIDE,PG_S_RIGHT,	      0);  pgNewWidget(PG_WIDGET_LABEL,PG_DERIVE_INSIDE,wBattbox);  pgSetWidget(PGDEFAULT,	      PG_WP_TEXT,pgNewString("Batt"),	      PG_WP_SIDE,PG_S_RIGHT,	      0);  wBatt = pgNewWidget(PG_WIDGET_INDICATOR,0,0);  pgSetWidget(PGDEFAULT,	      PG_WP_SIDE,PG_S_RIGHT,	      0);    /* Run it. */  pgSetIdle(4000,&sysIdle);  pgEventLoop();     return 0;}   /* The End */