321ccc0794
git-svn-id: http://tint2.googlecode.com/svn/trunk@747 121b4492-b84c-0410-8b4c-0d4edfb3f3cc
556 lines
15 KiB
C
556 lines
15 KiB
C
/**************************************************************************
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*
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* Tint2 : battery
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*
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* Copyright (C) 2009 Sebastian Reichel <elektranox@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* or any later version as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**************************************************************************/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <cairo.h>
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#include <cairo-xlib.h>
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#include <pango/pangocairo.h>
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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#include <machine/apmvar.h>
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#include <err.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#endif
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#if defined(__FreeBSD__)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#include "window.h"
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#include "server.h"
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#include "panel.h"
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#include "battery.h"
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#include "timer.h"
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#include "common.h"
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PangoFontDescription *bat1_font_desc;
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PangoFontDescription *bat2_font_desc;
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struct batstate battery_state;
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int battery_enabled;
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int percentage_hide;
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static timeout* battery_timeout;
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static char buf_bat_percentage[10];
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static char buf_bat_time[20];
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int8_t battery_low_status;
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unsigned char battery_low_cmd_sent;
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char *battery_low_cmd;
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char *path_energy_now;
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char *path_energy_full;
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char *path_current_now;
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char *path_status;
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int battery_found;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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int apm_fd;
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#endif
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void update_battery_tick(void* arg)
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{
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if (!battery_enabled)
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return;
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int old_found = battery_found;
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int old_percentage = battery_state.percentage;
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int16_t old_hours = battery_state.time.hours;
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int8_t old_minutes = battery_state.time.minutes;
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if (update_battery() != 0) {
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// Reconfigure
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init_battery();
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// Try again
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update_battery();
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}
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if (old_found == battery_found &&
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old_percentage == battery_state.percentage &&
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old_hours == battery_state.time.hours &&
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old_minutes == battery_state.time.minutes) {
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return;
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}
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if (battery_state.percentage < battery_low_status &&
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battery_state.state == BATTERY_DISCHARGING &&
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!battery_low_cmd_sent) {
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tint_exec(battery_low_cmd);
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battery_low_cmd_sent = 1;
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}
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if (battery_state.percentage > battery_low_status &&
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battery_state.state == BATTERY_CHARGING &&
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battery_low_cmd_sent) {
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battery_low_cmd_sent = 0;
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}
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int i;
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for (i = 0; i < nb_panel; i++) {
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if (!battery_found && panel1[i].battery.area.on_screen == 1) {
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hide(&panel1[i].battery.area);
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panel_refresh = 1;
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} else if (battery_state.percentage >= percentage_hide && panel1[i].battery.area.on_screen == 1) {
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hide(&panel1[i].battery.area);
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panel_refresh = 1;
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} else if (battery_state.percentage < percentage_hide && panel1[i].battery.area.on_screen == 0) {
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show(&panel1[i].battery.area);
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panel_refresh = 1;
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}
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if (panel1[i].battery.area.on_screen == 1) {
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panel1[i].battery.area.resize = 1;
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panel_refresh = 1;
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}
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}
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}
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void default_battery()
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{
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battery_enabled = 0;
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battery_found = 0;
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percentage_hide = 101;
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battery_low_cmd_sent = 0;
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battery_timeout = 0;
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bat1_font_desc = 0;
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bat2_font_desc = 0;
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battery_low_cmd = 0;
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path_energy_now = 0;
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path_energy_full = 0;
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path_current_now = 0;
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path_status = 0;
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battery_state.percentage = 0;
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battery_state.time.hours = 0;
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battery_state.time.minutes = 0;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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apm_fd = -1;
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#endif
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}
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void cleanup_battery()
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{
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pango_font_description_free(bat1_font_desc);
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bat1_font_desc = 0;
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pango_font_description_free(bat2_font_desc);
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bat2_font_desc = 0;
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g_free(path_energy_now);
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path_energy_now = 0;
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g_free(path_energy_full);
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path_energy_full = 0;
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g_free(path_current_now);
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path_current_now = 0;
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g_free(path_status);
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path_status = 0;
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g_free(battery_low_cmd);
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battery_low_cmd = 0;
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stop_timeout(battery_timeout);
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battery_timeout = 0;
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battery_found = 0;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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if ((apm_fd != -1) && (close(apm_fd) == -1))
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warn("cannot close /dev/apm");
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apm_fd = -1;
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#endif
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}
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void init_battery()
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{
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if (!battery_enabled)
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return;
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battery_found = 0;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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if (apm_fd > 0)
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close(apm_fd);
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apm_fd = open("/dev/apm", O_RDONLY);
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if (apm_fd < 0) {
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warn("ERROR: battery applet cannot open /dev/apm.");
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battery_found = 0;
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} else {
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battery_found = 1;
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}
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#elif defined(__FreeBSD__)
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// Nothing to do
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#else // Linux
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GDir *directory = 0;
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GError *error = NULL;
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const char *entryname;
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char *battery_dir = 0;
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directory = g_dir_open("/sys/class/power_supply", 0, &error);
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if (error) {
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g_error_free(error);
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} else {
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while ((entryname = g_dir_read_name(directory))) {
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if (strncmp(entryname, "AC", 2) == 0)
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continue;
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gchar *path1 = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
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if (g_file_test(path1, G_FILE_TEST_EXISTS)) {
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g_free(path1);
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battery_dir = g_build_filename("/sys/class/power_supply", entryname, NULL);
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break;
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}
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g_free(path1);
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}
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}
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if (directory)
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g_dir_close(directory);
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if (!battery_dir) {
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fprintf(stderr, "ERROR: battery applet cannot find any battery\n");
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battery_found = 0;
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} else {
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battery_found = 1;
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g_free(path_energy_now);
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path_energy_now = g_build_filename(battery_dir, "energy_now", NULL);
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if (!g_file_test(path_energy_now, G_FILE_TEST_EXISTS)) {
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g_free(path_energy_now);
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path_energy_now = g_build_filename(battery_dir, "charge_now", NULL);
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}
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if (!g_file_test(path_energy_now, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find energy_now nor charge_now\n");
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g_free(path_energy_now);
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path_energy_now = NULL;
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}
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g_free(path_energy_full);
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path_energy_full = g_build_filename(battery_dir, "energy_full", NULL);
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if (!g_file_test(path_energy_full, G_FILE_TEST_EXISTS)) {
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g_free(path_energy_full);
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path_energy_full = g_build_filename(battery_dir, "charge_full", NULL);
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}
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if (!g_file_test(path_energy_full, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find energy_now nor charge_now\n");
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g_free(path_energy_full);
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path_energy_full = NULL;
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}
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g_free(path_current_now);
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path_current_now = g_build_filename(battery_dir, "power_now", NULL);
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if (!g_file_test(path_current_now, G_FILE_TEST_EXISTS)) {
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g_free(path_current_now);
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path_current_now = g_build_filename(battery_dir, "current_now", NULL);
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}
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if (!g_file_test(path_current_now, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find power_now nor current_now\n");
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g_free(path_current_now);
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path_current_now = NULL;
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}
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g_free(path_status);
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path_status = g_build_filename(battery_dir, "status", NULL);
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if (!g_file_test(path_status, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find battery status\n");
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g_free(path_status);
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path_status = NULL;
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}
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g_free(battery_dir);
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battery_dir = NULL;
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}
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if (!path_status) {
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battery_found = 0;
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fprintf(stderr, "ERROR: battery applet cannot find any batteries\n");
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}
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#endif
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if (battery_timeout == 0) {
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battery_timeout = add_timeout(10, 10000, update_battery_tick, 0);
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}
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}
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void init_battery_panel(void *p)
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{
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Panel *panel = (Panel*)p;
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Battery *battery = &panel->battery;
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if (!battery_enabled)
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return;
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if (battery->area.bg == 0)
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battery->area.bg = &g_array_index(backgrounds, Background, 0);
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battery->area.parent = p;
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battery->area.panel = p;
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battery->area._draw_foreground = draw_battery;
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battery->area.size_mode = SIZE_BY_CONTENT;
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battery->area._resize = resize_battery;
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battery->area.on_screen = 1;
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battery->area.resize = 1;
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}
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int update_battery() {
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int64_t energy_now = 0,
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energy_full = 0;
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int seconds = 0;
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int8_t new_percentage = 0;
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int errors = 0;
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battery_state.state = BATTERY_UNKNOWN;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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struct apm_power_info info;
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if (apm_fd > 0 && ioctl(apm_fd, APM_IOC_GETPOWER, &(info)) == 0) {
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// best attempt at mapping to Linux battery states
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switch (info.battery_state) {
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case APM_BATT_CHARGING:
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battery_state.state = BATTERY_CHARGING;
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break;
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default:
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battery_state.state = BATTERY_DISCHARGING;
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break;
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}
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if (info.battery_life == 100)
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battery_state.state = BATTERY_FULL;
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// no mapping for openbsd really
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energy_full = 0;
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energy_now = 0;
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if (info.minutes_left != -1)
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seconds = info.minutes_left * 60;
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else
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seconds = -1;
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new_percentage = info.battery_life;
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} else {
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warn("power update: APM_IOC_GETPOWER");
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errors = 1;
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}
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#elif defined(__FreeBSD__)
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int sysctl_out = 0;
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size_t len = sizeof(sysctl_out);
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if (sysctlbyname("hw.acpi.battery.state", &sysctl_out, &len, NULL, 0) == 0) {
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// attemp to map the battery state to Linux
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battery_state.state = BATTERY_UNKNOWN;
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switch(sysctl_out) {
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case 1:
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battery_state.state = BATTERY_DISCHARGING;
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break;
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case 2:
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battery_state.state = BATTERY_CHARGING;
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break;
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default:
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battery_state.state = BATTERY_FULL;
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break;
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}
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} else {
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fprintf(stderr, "power update: no such sysctl");
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errors = 1;
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}
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// no mapping for freebsd
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energy_full = 0;
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energy_now = 0;
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if (sysctlbyname("hw.acpi.battery.time", &sysctl_out, &len, NULL, 0) != 0)
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seconds = -1;
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else
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seconds = sysctl_out * 60;
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// charging or error
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if (seconds < 0)
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seconds = 0;
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if (sysctlbyname("hw.acpi.battery.life", &sysctl_out, &len, NULL, 0) != 0)
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new_percentage = -1;
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else
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new_percentage = sysctl_out;
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#else
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FILE *fp = NULL;
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char tmp[25] = "";
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int64_t current_now = 0;
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if (path_status) {
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fp = fopen(path_status, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof(tmp), fp)) {
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if (strcasecmp(tmp, "Charging\n") == 0)
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battery_state.state = BATTERY_CHARGING;
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if (strcasecmp(tmp, "Discharging\n") == 0)
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battery_state.state = BATTERY_DISCHARGING;
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if (strcasecmp(tmp, "Full\n") == 0)
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battery_state.state = BATTERY_FULL;
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}
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_energy_now) {
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fp = fopen(path_energy_now, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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energy_now = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_energy_full) {
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fp = fopen(path_energy_full, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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energy_full = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_current_now) {
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fp = fopen(path_current_now, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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current_now = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (current_now > 0) {
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switch (battery_state.state) {
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case BATTERY_CHARGING:
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seconds = 3600 * (energy_full - energy_now) / current_now;
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break;
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case BATTERY_DISCHARGING:
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seconds = 3600 * energy_now / current_now;
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break;
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default:
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seconds = 0;
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break;
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}
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} else {
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seconds = 0;
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}
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#endif
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battery_state.time.hours = seconds / 3600;
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seconds -= 3600 * battery_state.time.hours;
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battery_state.time.minutes = seconds / 60;
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seconds -= 60 * battery_state.time.minutes;
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battery_state.time.seconds = seconds;
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if (energy_full > 0)
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new_percentage = ((energy_now <= energy_full ? energy_now : energy_full) * 100) / energy_full;
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battery_state.percentage = new_percentage;
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// clamp percentage to 100 in case battery is misreporting that its current charge is more than its max
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if (battery_state.percentage > 100) {
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battery_state.percentage = 100;
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}
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return errors;
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}
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void draw_battery (void *obj, cairo_t *c)
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{
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Battery *battery = obj;
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PangoLayout *layout;
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layout = pango_cairo_create_layout (c);
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// draw layout
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pango_layout_set_font_description(layout, bat1_font_desc);
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pango_layout_set_width(layout, battery->area.width * PANGO_SCALE);
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pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
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pango_layout_set_text(layout, buf_bat_percentage, strlen(buf_bat_percentage));
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cairo_set_source_rgba(c, battery->font.color[0], battery->font.color[1], battery->font.color[2], battery->font.alpha);
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pango_cairo_update_layout(c, layout);
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cairo_move_to(c, 0, battery->bat1_posy);
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pango_cairo_show_layout(c, layout);
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pango_layout_set_font_description(layout, bat2_font_desc);
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pango_layout_set_indent(layout, 0);
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pango_layout_set_text(layout, buf_bat_time, strlen(buf_bat_time));
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pango_layout_set_width(layout, battery->area.width * PANGO_SCALE);
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pango_cairo_update_layout(c, layout);
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cairo_move_to(c, 0, battery->bat2_posy);
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pango_cairo_show_layout(c, layout);
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g_object_unref(layout);
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}
|
|
|
|
|
|
int resize_battery(void *obj)
|
|
{
|
|
Battery *battery = obj;
|
|
Panel *panel = battery->area.panel;
|
|
int bat_percentage_height, bat_percentage_width, bat_percentage_height_ink;
|
|
int bat_time_height, bat_time_width, bat_time_height_ink;
|
|
int ret = 0;
|
|
|
|
battery->area.redraw = 1;
|
|
|
|
snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage);
|
|
if (battery_state.state == BATTERY_FULL) {
|
|
strcpy(buf_bat_time, "Full");
|
|
} else {
|
|
snprintf(buf_bat_time, sizeof(buf_bat_time), "%02d:%02d", battery_state.time.hours, battery_state.time.minutes);
|
|
}
|
|
get_text_size2(bat1_font_desc, &bat_percentage_height_ink, &bat_percentage_height, &bat_percentage_width,
|
|
panel->area.height, panel->area.width, buf_bat_percentage, strlen(buf_bat_percentage));
|
|
get_text_size2(bat2_font_desc, &bat_time_height_ink, &bat_time_height, &bat_time_width,
|
|
panel->area.height, panel->area.width, buf_bat_time, strlen(buf_bat_time));
|
|
|
|
if (panel_horizontal) {
|
|
int new_size = (bat_percentage_width > bat_time_width) ? bat_percentage_width : bat_time_width;
|
|
new_size += 2 * battery->area.paddingxlr + 2 * battery->area.bg->border.width;
|
|
if (new_size > battery->area.width ||
|
|
new_size < battery->area.width - 2) {
|
|
// we try to limit the number of resize
|
|
battery->area.width = new_size;
|
|
battery->bat1_posy = (battery->area.height - bat_percentage_height - bat_time_height) / 2;
|
|
battery->bat2_posy = battery->bat1_posy + bat_percentage_height;
|
|
ret = 1;
|
|
}
|
|
} else {
|
|
int new_size = bat_percentage_height + bat_time_height +
|
|
(2 * (battery->area.paddingxlr + battery->area.bg->border.width));
|
|
if (new_size > battery->area.height ||
|
|
new_size < battery->area.height - 2) {
|
|
battery->area.height = new_size;
|
|
battery->bat1_posy = (battery->area.height - bat_percentage_height - bat_time_height - 2) / 2;
|
|
battery->bat2_posy = battery->bat1_posy + bat_percentage_height + 2;
|
|
ret = 1;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|