battery.c

系统任务管理器

			t = bat->percent;
			if (t == -1)	/* APM battery flags should cause hide... but */
				snprintf(buf, sizeof(buf), "no bat");
			else
				snprintf(buf, sizeof(buf), "%d%%", t);
			break;
		}

	d = bat->time_decal;
	w = gkrellm_gdk_string_width(d->text_style.font, buf);
	x = (d->w - w) / 2;
	if (x < 0)
		x = 0;
	d->x_off = x;
	gkrellm_draw_decal_text(bat->panel, d, buf, force ? -1 : t);
	}

static void
update_battery_panel(Battery *bat)
	{
	GkrellmPanel	*p  = bat->panel;

	if (!p)
		return;
	if (!bat->present)
		{	/* Battery can be removed while running */
		gkrellm_panel_hide(p);
		return;
		}
	gkrellm_panel_show(p);

	if (bat->time_left > 0 && bat->charging)
		bat->charge_rate = (gfloat) (100 - bat->percent) / (gfloat) bat->time_left;
	else
		bat->charge_rate = 0.0;

	if (enable_estimate)
		estimate_battery_time_left(bat);

	if (bat->on_line)
		{
		gkrellm_reset_alert(bat->alert);
		gkrellm_freeze_alert(bat->alert);
		gkrellm_draw_decal_pixmap(p, bat->power_decal, D_MISC_AC);
		}
	else
		{
		if (   (bat == composite_battery && enable_composite)
			|| (bat != composite_battery && enable_each)
			)
			{
			gkrellm_thaw_alert(bat->alert);
			gkrellm_check_alert(bat->alert, alert_units_percent
						? bat->percent : bat->time_left);
			}
		gkrellm_draw_decal_pixmap(p, bat->power_decal, D_MISC_BATTERY);
		}
	draw_time_left_decal(bat, FALSE);
	gkrellm_update_krell(p, bat->krell, bat->percent);
	gkrellm_draw_panel_layers(p);
	}

static void
update_battery(void)
	{
	GList		*list;
	Battery		*bat;
	static gint	seconds = 0;

	if (!enable_each && !enable_composite)
		return;
	if (GK.second_tick)
		{
		if (seconds == 0)
			{
			for (list = battery_list; list; list = list->next)
				((Battery *) list->data)->present = FALSE;

			(*read_battery_data)();
			for (list = battery_list; list; list = list->next)
				{
				bat = (Battery *) list->data;
				if (!bat->panel)
					create_battery_panel(bat, TRUE);
				if (bat->enabled)
					update_battery_panel(bat);
				}
			}
		seconds = (seconds + 1) % poll_interval;
		}
	}

static gboolean
cb_expose_event(GtkWidget *widget, GdkEventExpose *ev, GkrellmPanel *p)
	{
	gdk_draw_drawable(widget->window,
			widget->style->fg_gc[GTK_WIDGET_STATE(widget)], p->pixmap,
			ev->area.x, ev->area.y, ev->area.x, ev->area.y,
			ev->area.width, ev->area.height);
	return FALSE;
	}

static gboolean
cb_panel_enter(GtkWidget *w, GdkEventButton *ev, Battery *bat)
	{
	gkrellm_decal_on_top_layer(bat->time_decal, TRUE);
	gkrellm_draw_panel_layers(bat->panel);
	return FALSE;
	}

static gboolean
cb_panel_leave(GtkWidget *w, GdkEventButton *ev, Battery *bat)
	{
	gkrellm_decal_on_top_layer(bat->time_decal, FALSE);
	gkrellm_draw_panel_layers(bat->panel);
	return FALSE;
	}


static gboolean
cb_panel_press(GtkWidget *widget, GdkEventButton *ev, Battery *bat)
	{
	GkrellmDecal			*d;
	static gboolean	time_unavailable_warned;

	d = launch.decal;
	if (ev->button == 3)
		gkrellm_open_config_window(mon_battery);
	else if (   ev->button == 2
			 || (ev->button == 1 && !d)
			 || (ev->button == 1 && d && ev->x < d->x)
			)
		{
		if (bat->time_left == -1 && bat->present)
			{
			if (!time_unavailable_warned)
				gkrellm_message_dialog(_("GKrellM Battery"),
					_("Battery times are unavailable.  You\n"
					  "could select the Estimated Time option."));
			time_unavailable_warned = TRUE;
			bat->display_mode = BATTERYDISPLAY_PERCENT;
			}
		else
			{
			bat->display_mode++;
			if (bat->display_mode == BATTERYDISPLAY_EOM)
				bat->display_mode = 0;

			draw_time_left_decal(bat, TRUE);
			gkrellm_draw_panel_layers(bat->panel);
			gkrellm_config_modified();
			}
		}
	return FALSE;
	}

static void
create_battery_panel(Battery *bat, gboolean first_create)
	{
	GkrellmPanel		*p;
	GkrellmStyle		*style;
	GkrellmMargin		*m;
	gint				x, w;

	if (!bat->panel)
		bat->panel = gkrellm_panel_new0();
	p = bat->panel;
	style = gkrellm_meter_style(style_id);
	m = gkrellm_get_style_margins(style);
	bat->power_decal = gkrellm_create_decal_pixmap(p,
			gkrellm_decal_misc_pixmap(), gkrellm_decal_misc_mask(),
			N_MISC_DECALS, style, m->left, -1);

	x = bat->power_decal->x + bat->power_decal->w + 2;
	w = gkrellm_chart_width() - x - m->right;
	bat->time_decal = gkrellm_create_decal_text(p, "8/%",
						gkrellm_meter_textstyle(style_id),
						style, x, -1, w);

	bat->krell = gkrellm_create_krell(p,
						gkrellm_krell_meter_piximage(style_id), style);
	gkrellm_monotonic_krell_values(bat->krell, FALSE);
	gkrellm_set_krell_full_scale(bat->krell, 100, 1);

	gkrellm_panel_configure(p, NULL, style);
	gkrellm_panel_create(battery_vbox, mon_battery, p);

	/* Center the decals with respect to each other.
	*/
	if (bat->power_decal->h > bat->time_decal->h)
		bat->time_decal->y += (bat->power_decal->h - bat->time_decal->h) / 2;
	else
		bat->power_decal->y += (bat->time_decal->h - bat->power_decal->h) / 2;

	if (first_create)
		{
		g_signal_connect(G_OBJECT(p->drawing_area), "expose_event",
				G_CALLBACK(cb_expose_event), p);
		g_signal_connect(G_OBJECT(p->drawing_area), "button_press_event",
				G_CALLBACK(cb_panel_press), bat);
		g_signal_connect(G_OBJECT(p->drawing_area), "enter_notify_event",
                G_CALLBACK(cb_panel_enter), bat);
		g_signal_connect(G_OBJECT(p->drawing_area), "leave_notify_event",
                G_CALLBACK(cb_panel_leave), bat);
		 }

	gkrellm_setup_decal_launcher(p, &launch, bat->time_decal);
	if (   (bat == composite_battery && enable_composite)
		|| (bat->id == 0 && composite_battery && !enable_composite)
		|| (bat->id == 0 && !composite_battery)
		)
		launch_battery = bat;

	if (bat == composite_battery)
		bat->enabled = enable_composite;
	else
		bat->enabled = enable_each;

	if (bat->enabled)
		update_battery_panel(bat);
	else
		gkrellm_panel_hide(p);
	}

static void
spacer_visibility(void)
	{
	GList		*list;
	Battery		*bat;
	gboolean	enabled = FALSE;

	for (list = battery_list; list; list = list->next)
		{
		bat = (Battery *) list->data;
		enabled |= bat->enabled;
		}
	if (enabled)
		gkrellm_spacers_show(mon_battery);
	else
		gkrellm_spacers_hide(mon_battery);
	}

static void
create_battery(GtkWidget *vbox, gint first_create)
	{
	GList	*list;
	Battery	*bat;

	battery_vbox = vbox;
	if (_GK.demo)
		enable_each = TRUE;
	for (list = battery_list; list; list = list->next)
		{
		bat = (Battery *) list->data;
		create_battery_panel(bat, first_create);
		}
	spacer_visibility();
	}


  /* Expand alert command substitution variables:
  |  $H - hostname           $n - battery id
  |  $t - time left          $p - percent
  |  $o - online (boolean)   $c - charging (boolean)
  */
static void
cb_command_process(GkrellmAlert *alert, gchar *src, gchar *buf, gint size,
			Battery *bat)
	{
	gchar		c, *s;
	gint		len, value;

	if (!buf || size < 1)
		return;
	--size;
	*buf = '\0';
	if (!src)
		return;
	for (s = src; *s != '\0' && size > 0; ++s)
		{
		len = 1;
		if (*s == '$' && *(s + 1) != '\0')
			{
			value = -1;
			if ((c = *(s + 1)) == 'H')
				len = snprintf(buf, size, "%s", gkrellm_sys_get_host_name());
			else if (c == 'n' && bat != composite_battery)
				value = bat->id;
			else if (c == 't')
				value = bat->time_left;
			else if (c == 'p')
				value = bat->percent;
			else if (c == 'o')
				value = bat->on_line;
			else if (c == 'c')
				value = bat->charging;
			else
				len = 0;

			if (value >= 0)
				len = snprintf(buf, size, "%d", value);
			++s;
			}
		else
			*buf = *s;
		size -= len;
		buf += len;
		}
	*buf = '\0';
	}

static void
cb_battery_alert_trigger(GkrellmAlert *alert, Battery *bat)
	{
	GkrellmAlertdecal	*ad;
	GkrellmDecal		*d;

	alert->panel = bat->panel;
	ad = &alert->ad;
	d = bat->time_decal;
	ad->x = d->x + 1;
	ad->y = d->y - 2;
	ad->w = d->w - 1;
	ad->h = d->h + 4;
	gkrellm_render_default_alert_decal(alert);
	}

static void
dup_battery_alert(void)
	{
	GList	*list;
	Battery	*bat;

	for (list = battery_list; list; list = list->next)
		{
		bat = (Battery *) list->data;
		gkrellm_alert_dup(&bat->alert, bat_alert);
		gkrellm_alert_trigger_connect(bat->alert,
					cb_battery_alert_trigger, bat);
		gkrellm_alert_command_process_connect(bat->alert,
					cb_command_process, bat);
		}
	}


  /* If the OS reports battery times, alerts will always have minutes units.
  |  If the OS does not report battery times the initial alert create will
  |  have minutes units if the estimate time option is enabled and it will
  |  have battery percent level units if estimate time option is off.  Alert
  |  creates from load config will have units in effect at last save config.
  */
static void
create_alert(void)
	{
	Battery	*bat;

	if (!battery_list)
		return;
	bat = (Battery *) battery_list->data;

	if (!bat_alert)
		{
		alert_units_need_estimate_mode = FALSE;

		if (   alert_units_percent
			|| (bat->time_left == -1 && !enable_estimate)
		   )
			{
			if (bat->time_left == -1)
				alert_units_percent = TRUE;
			bat_alert = gkrellm_alert_create(NULL, _("Battery"),
					_("Battery Percent Limits"),
					FALSE, TRUE, TRUE, 99, 0, 1, 10, 0);
			}
		else
			{
			bat_alert = gkrellm_alert_create(NULL, _("Battery"),
					_("Battery Minutes Remaining Limits"),
					FALSE, TRUE, TRUE, 500, 0, 1, 10, 0);
			if (bat->time_left == -1)
				alert_units_need_estimate_mode = TRUE;
			}
		}
	gkrellm_alert_config_connect(bat_alert, dup_battery_alert, NULL);

	/* This alert is a master to be dupped and is itself never checked */
	}


static void
save_battery_config(FILE *f)
	{
	GList	*list;
	Battery	*bat;

	fprintf(f, "%s enable %d\n", BAT_CONFIG_KEYWORD, enable_each);
	fprintf(f, "%s enable_composite %d\n", BAT_CONFIG_KEYWORD,
					enable_composite);
	fprintf(f, "%s estimate_time %d\n", BAT_CONFIG_KEYWORD, enable_estimate);

	/* 2.1.15: scale saved float values to avoid decimal points in the config.
	*/
	fprintf(f, "%s estimate_time_discharge %.0f\n", BAT_CONFIG_KEYWORD,
				estimate_runtime[0] * GKRELLM_FLOAT_FACTOR);
	fprintf(f, "%s estimate_time_charge %.0f\n", BAT_CONFIG_KEYWORD,
				estimate_runtime[1] * GKRELLM_FLOAT_FACTOR);
	fprintf(f, "%s estimate_time_charge_model %d\n", BAT_CONFIG_KEYWORD,
				estimate_model[1]);
	fprintf(f, "%s full_cap_fallback %d\n", BAT_CONFIG_KEYWORD,
						full_cap_fallback);
	if (!_GK.client_mode)
		fprintf(f, "%s poll_interval %d\n", BAT_CONFIG_KEYWORD, poll_interval);
	if (launch.command)
		fprintf(f, "%s launch1 %s\n", BAT_CONFIG_KEYWORD, launch.command);
	if (launch.tooltip_comment)
		fprintf(f, "%s tooltip_comment %s\n",
					BAT_CONFIG_KEYWORD, launch.tooltip_comment);
	fprintf(f, "%s alert_units_percent %d\n", BAT_CONFIG_KEYWORD,
				alert_units_percent);
	for (list = battery_list; list; list = list->next)
		{
		bat = (Battery *) list->data;
		if (bat == composite_battery)	/* Don't 2.1.16 backwards break */
			fprintf(f, "%s display_mode_composite %d %d\n", BAT_CONFIG_KEYWORD,
						bat->display_mode, bat->id);
		else
			fprintf(f, "%s display_mode %d %d\n", BAT_CONFIG_KEYWORD,
						bat->display_mode, bat->id);
		}