Initial import of the "brightness" applet
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src/applets/brightness.c
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241
src/applets/brightness.c
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/* $Id$ */
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/* Copyright (c) 2015 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS Desktop Panel */
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/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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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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*
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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, see <http://www.gnu.org/licenses/>. */
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#if defined(__NetBSD__)
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# include <sys/param.h>
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# include <sys/sysctl.h>
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# include <errno.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <libintl.h>
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#include <System.h>
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#include "Panel.h"
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#define _(string) gettext(string)
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/* Brightness */
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/* private */
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/* types */
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typedef struct _PanelApplet
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{
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PanelAppletHelper * helper;
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/* widgets */
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GtkWidget * box;
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GtkWidget * image;
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GtkWidget * label;
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GtkWidget * progress;
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guint timeout;
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} Brightness;
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/* prototypes */
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static Brightness * _brightness_init(PanelAppletHelper * helper,
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GtkWidget ** widget);
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static void _brightness_destroy(Brightness * brightness);
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static int _brightness_get(Brightness * brightness);
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static void _brightness_set(Brightness * brightness, int level);
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/* callbacks */
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static gboolean _brightness_on_timeout(gpointer data);
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/* public */
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/* variables */
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PanelAppletDefinition applet =
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{
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"Brightness",
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/* FIXME choose a corresponding image */
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"image-missing",
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NULL,
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_brightness_init,
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_brightness_destroy,
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NULL,
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FALSE,
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TRUE
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};
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/* private */
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/* functions */
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/* brightness_init */
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static Brightness * _brightness_init(PanelAppletHelper * helper,
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GtkWidget ** widget)
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{
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Brightness * brightness;
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GtkWidget * vbox;
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GtkWidget * hbox;
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PangoFontDescription * bold;
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if((brightness = malloc(sizeof(*brightness))) == NULL)
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return NULL;
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brightness->helper = helper;
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brightness->timeout = 0;
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#if GTK_CHECK_VERSION(3, 0, 0)
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hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
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#else
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hbox = gtk_hbox_new(FALSE, 4);
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#endif
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brightness->box = hbox;
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/* FIXME choose a corresponding image */
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brightness->image = gtk_image_new_from_icon_name("image-missing",
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helper->icon_size);
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gtk_box_pack_start(GTK_BOX(hbox), brightness->image, TRUE, TRUE, 0);
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brightness->label = NULL;
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brightness->progress = NULL;
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if(helper->type == PANEL_APPLET_TYPE_NOTIFICATION)
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{
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bold = pango_font_description_new();
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pango_font_description_set_weight(bold, PANGO_WEIGHT_BOLD);
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#if GTK_CHECK_VERSION(3, 0, 0)
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vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 4);
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#else
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vbox = gtk_vbox_new(FALSE, 4);
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#endif
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gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, TRUE, 0);
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gtk_widget_show(hbox);
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brightness->progress = gtk_progress_bar_new();
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gtk_box_pack_start(GTK_BOX(vbox), brightness->progress, TRUE,
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TRUE, 0);
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brightness->box = vbox;
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pango_font_description_free(bold);
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}
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else
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{
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#ifndef EMBEDDED
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brightness->label = gtk_label_new(" ");
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gtk_box_pack_start(GTK_BOX(hbox), brightness->label, FALSE,
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TRUE, 0);
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gtk_widget_show(brightness->label);
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#endif
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brightness->box = hbox;
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}
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brightness->timeout = g_timeout_add(1000, _brightness_on_timeout,
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brightness);
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_brightness_on_timeout(brightness);
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gtk_widget_show(brightness->image);
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*widget = brightness->box;
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return brightness;
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}
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/* brightness_destroy */
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static void _brightness_destroy(Brightness * brightness)
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{
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if(brightness->timeout > 0)
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g_source_remove(brightness->timeout);
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gtk_widget_destroy(brightness->box);
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free(brightness);
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}
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/* brightness_set */
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static void _brightness_set(Brightness * brightness, int level)
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{
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char buf[64];
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double fraction;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s(%d)\n", __func__, level);
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#endif
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/* XXX only show when necessary? */
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if(level >= 0 && level <= 100)
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{
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#if GTK_CHECK_VERSION(2, 12, 0)
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snprintf(buf, sizeof(buf), _("Brightness: %d%%"), level);
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gtk_widget_set_tooltip_text(brightness->box, buf);
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#endif
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snprintf(buf, sizeof(buf), "%d%% ", level);
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if(brightness->progress != NULL)
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{
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fraction = level;
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gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(
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brightness->progress),
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fraction / 100.0);
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gtk_widget_show(brightness->progress);
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}
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}
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else
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{
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/* the brightness is invalid */
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#if GTK_CHECK_VERSION(2, 12, 0)
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gtk_widget_set_tooltip_text(brightness->box, NULL);
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#endif
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gtk_widget_hide(brightness->box);
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if(level < 0)
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snprintf(buf, sizeof(buf), "%s", _("Error"));
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else if(level > 100)
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snprintf(buf, sizeof(buf), "%s", _("Unknown"));
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}
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if(brightness->label != NULL)
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gtk_label_set_text(GTK_LABEL(brightness->label), buf);
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if(brightness->progress != NULL)
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gtk_progress_bar_set_text(GTK_PROGRESS_BAR(
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brightness->progress), buf);
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gtk_widget_show(brightness->box);
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}
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/* callbacks */
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/* brightness_on_timeout */
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#if defined(__NetBSD__)
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static int _brightness_get(Brightness * brightness)
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{
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PanelAppletHelper * helper = brightness->helper;
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char const sysctl[] = "hw.acpi.acpiout0.brightness";
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int level = -1;
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size_t s;
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if(sysctlbyname(sysctl, &level, &s, NULL, 0) != 0)
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return -helper->error(helper->panel, strerror(errno), 1);
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return level;
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}
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#else
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static int _brightness_get(Brightness * brightness)
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{
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/* FIXME not supported */
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error_set("%s", strerror(ENOSYS));
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return -1;
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}
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#endif
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/* callbacks */
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/* on_timeout */
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static gboolean _brightness_on_timeout(gpointer data)
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{
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Brightness * brightness = data;
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int level;
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int timeout;
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s()\n", __func__);
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#endif
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if((level = _brightness_get(brightness)) >= 0)
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{
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_brightness_set(brightness, level);
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timeout = 1000;
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}
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else
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timeout = 10000;
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brightness->timeout = g_timeout_add(timeout, _brightness_on_timeout,
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brightness);
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return FALSE;
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}
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@ -1,4 +1,4 @@
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targets=battery,bluetooth,clock,close,cpu,cpufreq,desktop,embed,gps,gsm,lock,logout,menu,memory,mixer,mpd,network,pager,phone,rotate,separator,spacer,swap,systray,tasks,template,title,usb,user,volume,wpa_supplicant
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targets=battery,bluetooth,brightness,clock,close,cpu,cpufreq,desktop,embed,gps,gsm,lock,logout,menu,memory,mixer,mpd,network,pager,phone,rotate,separator,spacer,swap,systray,tasks,template,title,usb,user,volume,wpa_supplicant
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cppflags_force=-I ../../include
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#cppflags=-D EMBEDDED
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#cflags_force=-W `pkg-config --cflags libSystem gtk+-3.0` -fPIC
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@ -24,6 +24,14 @@ install=$(LIBDIR)/Panel/applets
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[bluetooth.c]
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depends=../../include/Panel.h
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[brightness]
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type=plugin
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sources=brightness.c
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install=$(LIBDIR)/Panel/applets
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[brightness.c]
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depends=../../include/Panel.h
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[clock]
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type=plugin
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sources=clock.c
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