tint2/src/battery/battery.c

409 lines
12 KiB
C

/**************************************************************************
*
* Tint2 : Generic battery
*
* Copyright (C) 2009-2015 Sebastian Reichel <sre@ring0.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* or any later version as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**************************************************************************/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#include <cairo-xlib.h>
#include <pango/pangocairo.h>
#include "window.h"
#include "server.h"
#include "panel.h"
#include "battery.h"
#include "timer.h"
#include "common.h"
gboolean bat1_has_font;
PangoFontDescription *bat1_font_desc;
gboolean bat2_has_font;
PangoFontDescription *bat2_font_desc;
struct BatteryState battery_state;
gboolean battery_enabled;
gboolean battery_tooltip_enabled;
int percentage_hide;
static timeout *battery_timeout;
static char buf_bat_percentage[10];
static char buf_bat_time[20];
int8_t battery_low_status;
gboolean battery_low_cmd_sent;
char *ac_connected_cmd;
char *ac_disconnected_cmd;
char *battery_low_cmd;
char *battery_lclick_command;
char *battery_mclick_command;
char *battery_rclick_command;
char *battery_uwheel_command;
char *battery_dwheel_command;
gboolean battery_found;
void battery_init_fonts();
void update_battery_tick(void *arg)
{
if (!battery_enabled)
return;
gboolean old_found = battery_found;
int old_percentage = battery_state.percentage;
gboolean old_ac_connected = battery_state.ac_connected;
int16_t old_hours = battery_state.time.hours;
int8_t old_minutes = battery_state.time.minutes;
if (!battery_found) {
init_battery();
old_ac_connected = battery_state.ac_connected;
}
if (update_battery() != 0) {
// Try to reconfigure on failed update
init_battery();
}
if (old_ac_connected != battery_state.ac_connected) {
if (battery_state.ac_connected)
tint_exec(ac_connected_cmd);
else
tint_exec(ac_disconnected_cmd);
}
if (battery_state.percentage < battery_low_status && battery_state.state == BATTERY_DISCHARGING &&
!battery_low_cmd_sent) {
tint_exec(battery_low_cmd);
battery_low_cmd_sent = TRUE;
}
if (battery_state.percentage > battery_low_status && battery_state.state == BATTERY_CHARGING &&
battery_low_cmd_sent) {
battery_low_cmd_sent = FALSE;
}
for (int i = 0; i < num_panels; i++) {
// Show/hide if needed
if (!battery_found) {
if (panels[i].battery.area.on_screen) {
hide(&panels[i].battery.area);
panel_refresh = TRUE;
}
} else {
if (battery_state.percentage >= percentage_hide) {
if (panels[i].battery.area.on_screen) {
hide(&panels[i].battery.area);
panel_refresh = TRUE;
}
} else {
if (!panels[i].battery.area.on_screen) {
show(&panels[i].battery.area);
panel_refresh = TRUE;
}
}
}
// Redraw if needed
if (panels[i].battery.area.on_screen) {
if (old_found != battery_found || old_percentage != battery_state.percentage ||
old_hours != battery_state.time.hours || old_minutes != battery_state.time.minutes) {
panels[i].battery.area.resize_needed = TRUE;
panel_refresh = TRUE;
}
}
}
}
void default_battery()
{
battery_enabled = FALSE;
battery_tooltip_enabled = TRUE;
battery_found = FALSE;
percentage_hide = 101;
battery_low_cmd_sent = FALSE;
battery_timeout = NULL;
bat1_has_font = FALSE;
bat1_font_desc = NULL;
bat2_has_font = FALSE;
bat2_font_desc = NULL;
ac_connected_cmd = NULL;
ac_disconnected_cmd = NULL;
battery_low_cmd = NULL;
battery_lclick_command = NULL;
battery_mclick_command = NULL;
battery_rclick_command = NULL;
battery_uwheel_command = NULL;
battery_dwheel_command = NULL;
battery_state.percentage = 0;
battery_state.time.hours = 0;
battery_state.time.minutes = 0;
battery_state.time.seconds = 0;
battery_state.state = BATTERY_UNKNOWN;
}
void cleanup_battery()
{
pango_font_description_free(bat1_font_desc);
bat1_font_desc = NULL;
pango_font_description_free(bat2_font_desc);
bat2_font_desc = NULL;
free(battery_low_cmd);
battery_low_cmd = NULL;
free(battery_lclick_command);
battery_lclick_command = NULL;
free(battery_mclick_command);
battery_mclick_command = NULL;
free(battery_rclick_command);
battery_rclick_command = NULL;
free(battery_uwheel_command);
battery_uwheel_command = NULL;
free(battery_dwheel_command);
battery_dwheel_command = NULL;
free(ac_connected_cmd);
ac_connected_cmd = NULL;
free(ac_disconnected_cmd);
ac_disconnected_cmd = NULL;
stop_timeout(battery_timeout);
battery_timeout = NULL;
battery_found = FALSE;
battery_os_free();
}
void reinit_battery()
{
battery_os_free();
battery_found = battery_os_init();
update_battery();
}
void init_battery()
{
if (!battery_enabled)
return;
battery_found = battery_os_init();
if (!battery_timeout)
battery_timeout = add_timeout(10, 30000, update_battery_tick, 0, &battery_timeout);
update_battery();
}
char *battery_get_tooltip(void *obj)
{
return battery_os_tooltip();
}
void init_battery_panel(void *p)
{
Panel *panel = (Panel *)p;
Battery *battery = &panel->battery;
if (!battery_enabled)
return;
battery_init_fonts();
if (!battery->area.bg)
battery->area.bg = &g_array_index(backgrounds, Background, 0);
battery->area.parent = p;
battery->area.panel = p;
battery->area._draw_foreground = draw_battery;
battery->area.size_mode = LAYOUT_FIXED;
battery->area._resize = resize_battery;
battery->area.on_screen = TRUE;
battery->area.resize_needed = 1;
battery->area.has_mouse_over_effect = battery_lclick_command || battery_mclick_command || battery_rclick_command ||
battery_uwheel_command || battery_dwheel_command;
battery->area.has_mouse_press_effect = battery->area.has_mouse_over_effect;
if (battery_tooltip_enabled)
battery->area._get_tooltip_text = battery_get_tooltip;
}
void battery_init_fonts()
{
if (!bat1_font_desc) {
bat1_font_desc = pango_font_description_from_string(get_default_font());
pango_font_description_set_size(bat1_font_desc,
pango_font_description_get_size(bat1_font_desc) - PANGO_SCALE);
}
if (!bat2_font_desc) {
bat2_font_desc = pango_font_description_from_string(get_default_font());
pango_font_description_set_size(bat2_font_desc,
pango_font_description_get_size(bat2_font_desc) - PANGO_SCALE);
}
}
void battery_default_font_changed()
{
if (!battery_enabled)
return;
if (bat1_has_font && bat2_has_font)
return;
if (!bat1_has_font) {
pango_font_description_free(bat1_font_desc);
bat1_font_desc = NULL;
}
if (!bat2_has_font) {
pango_font_description_free(bat2_font_desc);
bat2_font_desc = NULL;
}
battery_init_fonts();
for (int i = 0; i < num_panels; i++) {
panels[i].battery.area.resize_needed = TRUE;
panels[i].battery.area.redraw_needed = TRUE;
}
panel_refresh = TRUE;
}
int update_battery()
{
int err;
/* reset */
battery_state.state = BATTERY_UNKNOWN;
battery_state.percentage = 0;
battery_state.ac_connected = FALSE;
battery_state_set_time(&battery_state, 0);
err = battery_os_update(&battery_state);
// clamp percentage to 100 in case battery is misreporting that its current charge is more than its max
if (battery_state.percentage > 100) {
battery_state.percentage = 100;
}
return err;
}
void draw_battery(void *obj, cairo_t *c)
{
Battery *battery = obj;
PangoLayout *layout;
layout = pango_cairo_create_layout(c);
// draw layout
pango_layout_set_font_description(layout, bat1_font_desc);
pango_layout_set_width(layout, battery->area.width * PANGO_SCALE);
pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
pango_layout_set_text(layout, buf_bat_percentage, strlen(buf_bat_percentage));
cairo_set_source_rgba(c, battery->font.rgb[0], battery->font.rgb[1], battery->font.rgb[2], battery->font.alpha);
pango_cairo_update_layout(c, layout);
draw_text(layout, c, 0, battery->bat1_posy, &battery->font, ((Panel *)battery->area.panel)->font_shadow);
pango_layout_set_font_description(layout, bat2_font_desc);
pango_layout_set_indent(layout, 0);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
pango_layout_set_text(layout, buf_bat_time, strlen(buf_bat_time));
pango_layout_set_width(layout, battery->area.width * PANGO_SCALE);
pango_cairo_update_layout(c, layout);
draw_text(layout, c, 0, battery->bat2_posy, &battery->font, ((Panel *)battery->area.panel)->font_shadow);
pango_cairo_show_layout(c, layout);
g_object_unref(layout);
}
gboolean 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_needed = TRUE;
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),
PANGO_WRAP_WORD_CHAR,
PANGO_ELLIPSIZE_NONE,
FALSE);
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),
PANGO_WRAP_WORD_CHAR,
PANGO_ELLIPSIZE_NONE,
FALSE);
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;
}
void battery_action(int button)
{
char *command = 0;
switch (button) {
case 1:
command = battery_lclick_command;
break;
case 2:
command = battery_mclick_command;
break;
case 3:
command = battery_rclick_command;
break;
case 4:
command = battery_uwheel_command;
break;
case 5:
command = battery_dwheel_command;
break;
}
tint_exec(command);
}