From 6f9e73f8f0b88d1258e99397d9ca8b1afca5085e Mon Sep 17 00:00:00 2001 From: Thierry Lorthiois Date: Fri, 15 May 2009 20:48:55 +0000 Subject: [PATCH] added battery code --- src/battery/battery.c | 244 ++++++++++++++++++++++++++++++++++++++++++ src/battery/battery.h | 62 +++++++++++ 2 files changed, 306 insertions(+) create mode 100644 src/battery/battery.c create mode 100644 src/battery/battery.h diff --git a/src/battery/battery.c b/src/battery/battery.c new file mode 100644 index 0000000..a0b122d --- /dev/null +++ b/src/battery/battery.c @@ -0,0 +1,244 @@ +/************************************************************************** +* +* Tint2 : battery +* +* Copyright (C) 2009 Sebastian Reichel +* +* 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 +#include +#include +#include +#include +#include + +#include "window.h" +#include "server.h" +#include "taskbar.h" +#include "panel.h" +#include "area.h" +#include "battery.h" +#include "clock.h" + +PangoFontDescription *bat1_font_desc; +PangoFontDescription *bat2_font_desc; +struct batstate battery_state; + +static char buf_bat_percentage[10]; +static char buf_bat_time[20]; + +int8_t battery_low_status; +char* battery_low_cmd; + +void update_battery(struct batstate *data) { + FILE *fp; + char tmp[25]; + int64_t energy_now = 0, energy_full = 0, current_now = 0; + int seconds = 0; + int8_t new_percentage = 0; + + fp = fopen("/sys/class/power_supply/BAT0/energy_now", "r"); + if(fp != NULL) { + fgets(tmp, sizeof tmp, fp); + energy_now = atoi(tmp); + fclose(fp); + } else printf("ERROR: battery applet can't open energy_now\n"); + + fp = fopen("/sys/class/power_supply/BAT0/energy_full", "r"); + if(fp != NULL) { + fgets(tmp, sizeof tmp, fp); + energy_full = atoi(tmp); + fclose(fp); + } else printf("ERROR: battery applet can't open energy_full\n"); + + fp = fopen("/sys/class/power_supply/BAT0/current_now", "r"); + if(fp != NULL) { + fgets(tmp, sizeof tmp, fp); + current_now = atoi(tmp); + fclose(fp); + } else printf("ERROR: battery applet can't open current_now\n"); + + fp = fopen("/sys/class/power_supply/BAT0/status", "r"); + if(fp != NULL) { + fgets(tmp, sizeof tmp, fp); + fclose(fp); + } else printf("ERROR: battery applet can't open status"); + + data->state = BATTERY_UNKNOWN; + if(strcasecmp(tmp, "Charging\n")==0) data->state = BATTERY_CHARGING; + if(strcasecmp(tmp, "Discharging\n")==0) data->state = BATTERY_DISCHARGING; + + if(current_now > 0) { + switch(data->state) { + case BATTERY_CHARGING: + seconds = 3600 * (energy_full - energy_now) / current_now; + break; + case BATTERY_DISCHARGING: + seconds = 3600 * energy_now / current_now; + break; + default: + seconds = 0; + break; + } + } else seconds = 0; + + data->time.hours = seconds / 3600; + seconds -= 3600 * data->time.hours; + data->time.minutes = seconds / 60; + seconds -= 60 * data->time.minutes; + data->time.seconds = seconds; + + new_percentage = (energy_now*100)/energy_full; + + if(battery_low_status != 0 && battery_low_status == new_percentage && data->percentage > new_percentage) { + printf("battery low, executing: %s\n", battery_low_cmd); + if(battery_low_cmd) system(battery_low_cmd); + } + + data->percentage = new_percentage; +} + +void init_battery() +{ + Panel *panel; + Battery *battery; + int i, bat_percentage_height, bat_percentage_height_ink, bat_time_height, bat_time_height_ink; + + for (i=0 ; i < nb_panel ; i++) { + panel = &panel1[i]; + battery = &panel->battery; + + battery->area.parent = panel; + battery->area.panel = panel; + battery->area._draw_foreground = draw_battery; + battery->area._resize = resize_battery; + + if (!battery->area.on_screen) continue; + + battery->area.posy = panel->area.pix.border.width + panel->area.paddingy; + battery->area.height = panel->area.height - (2 * battery->area.posy); + battery->area.resize = 1; + battery->area.redraw = 1; + + update_battery(&battery_state); + snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage); + snprintf(buf_bat_time, sizeof(buf_bat_time), "%02d:%02d", battery_state.time.hours, battery_state.time.minutes); + + get_text_size(bat1_font_desc, &bat_percentage_height_ink, &bat_percentage_height, panel->area.height, buf_bat_percentage, strlen(buf_bat_percentage)); + battery->bat1_posy = (battery->area.height - bat_percentage_height) / 2; + + get_text_size(bat2_font_desc, &bat_time_height_ink, &bat_time_height, panel->area.height, buf_bat_time, strlen(buf_bat_time)); + + battery->bat1_posy -= ((bat_time_height_ink + 2) / 2); + battery->bat2_posy = battery->bat1_posy + bat_percentage_height + 2 - (bat_percentage_height - bat_percentage_height_ink)/2 - (bat_time_height - bat_time_height_ink)/2; + } +} + + +void draw_battery (void *obj, cairo_t *c, int active) +{ + 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_text(layout, buf_bat_percentage, strlen(buf_bat_percentage)); + + cairo_set_source_rgba(c, battery->font.color[0], battery->font.color[1], battery->font.color[2], battery->font.alpha); + + pango_cairo_update_layout(c, layout); + cairo_move_to(c, 0, battery->bat1_posy); + pango_cairo_show_layout(c, layout); + + pango_layout_set_font_description(layout, bat2_font_desc); + pango_layout_set_indent(layout, 0); + 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); + cairo_move_to(c, 0, battery->bat2_posy); + pango_cairo_show_layout(c, layout); + + g_object_unref(layout); +} + +void resize_battery(void *obj) +{ + Battery *battery = obj; + PangoLayout *layout; + int percentage_width, time_width, new_width; + + percentage_width = time_width = 0; + battery->area.redraw = 1; + + snprintf(buf_bat_percentage, sizeof(buf_bat_percentage), "%d%%", battery_state.percentage); + snprintf(buf_bat_time, sizeof(buf_bat_time), "%02d:%02d", battery_state.time.hours, battery_state.time.minutes); + + cairo_surface_t *cs; + cairo_t *c; + Pixmap pmap; + pmap = XCreatePixmap(server.dsp, server.root_win, battery->area.width, battery->area.height, server.depth); + + cs = cairo_xlib_surface_create(server.dsp, pmap, server.visual, battery->area.width, battery->area.height); + c = cairo_create(cs); + layout = pango_cairo_create_layout(c); + + // check width + pango_layout_set_font_description(layout, bat1_font_desc); + pango_layout_set_indent(layout, 0); + pango_layout_set_text(layout, buf_bat_percentage, strlen(buf_bat_percentage)); + pango_layout_get_pixel_size(layout, &percentage_width, NULL); + + pango_layout_set_font_description(layout, bat2_font_desc); + pango_layout_set_indent(layout, 0); + pango_layout_set_text(layout, buf_bat_time, strlen(buf_bat_time)); + pango_layout_get_pixel_size(layout, &time_width, NULL); + + if(percentage_width > time_width) new_width = percentage_width; + else new_width = time_width; + + new_width += (2*battery->area.paddingxlr) + (2*battery->area.pix.border.width); + + if(new_width > battery->area.width || new_width < (battery->area.width-6)) { + int i; + Panel *panel = ((Area*)obj)->panel; + + printf("battery_width %d, new_width %d\n", battery->area.width, new_width); + + // resize battery + // we try to limit the number of resize + battery->area.width = new_width + 1; + battery->area.posx = panel->area.width - battery->area.width - panel->area.paddingxlr - panel->area.pix.border.width; + if (panel->clock.area.on_screen) + battery->area.posx -= (panel->clock.area.width + panel->area.paddingx); + + // resize other objects on panel + for (i=0 ; i < nb_panel ; i++) + panel1[i].area.resize = 1; + + systray.area.resize = 1; + panel_refresh = 1; + } + + g_object_unref (layout); + cairo_destroy (c); + cairo_surface_destroy (cs); + XFreePixmap (server.dsp, pmap); +} + diff --git a/src/battery/battery.h b/src/battery/battery.h new file mode 100644 index 0000000..433be7f --- /dev/null +++ b/src/battery/battery.h @@ -0,0 +1,62 @@ +/************************************************************************** +* Copyright (C) 2009 Sebastian Reichel +* +* Battery with functional data (percentage, time to life) and drawing data +* (area, font, ...). Each panel use his own drawing data. +* +**************************************************************************/ + +#ifndef BATTERY_H +#define BATTERY_H + +#include +#include +#include + +#include "common.h" +#include "area.h" + +typedef struct Battery { + // always start with area + Area area; + + config_color font; + int bat1_posy; + int bat2_posy; +} Battery; + +enum chargestate { + BATTERY_UNKNOWN, + BATTERY_CHARGING, + BATTERY_DISCHARGING +}; + +typedef struct battime { + int16_t hours; + int8_t minutes; + int8_t seconds; +} battime; + +typedef struct batstate { + int percentage; + struct battime time; + enum chargestate state; +} batstate; + +extern struct batstate battery_state; +extern PangoFontDescription *bat1_font_desc; +extern PangoFontDescription *bat2_font_desc; + +extern int8_t battery_low_status; +extern char* battery_low_cmd; + +// initialize clock : y position, ... +void update_battery(struct batstate *data); + +void init_battery(); + +void draw_battery(void *obj, cairo_t *c, int active); + +void resize_battery(void *obj); + +#endif -- 2.45.2