gnome-control-center/panels/network/panel-cell-renderer-signal.c

/* -*- Mode: C; tab-width: 8; indent-tabs-signal: nil; c-basic-offset: 8 -*-
 *
 * Copyright (C) 2010 Richard Hughes <richard@hughsie.com>
 *
 * Licensed under the GNU General Public License Version 2
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 "config.h"

#include <glib.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>

#include "panel-cell-renderer-signal.h"

enum {
        PROP_0,
        PROP_SIGNAL,
        PROP_LAST
};

G_DEFINE_TYPE (PanelCellRendererSignal, panel_cell_renderer_signal, GTK_TYPE_CELL_RENDERER_PIXBUF)

static gpointer parent_class = NULL;

/**
 * panel_cell_renderer_signal_get_property:
 **/
static void
panel_cell_renderer_signal_get_property (GObject *object, guint param_id,
                                       GValue *value, GParamSpec *pspec)
{
        PanelCellRendererSignal *renderer = PANEL_CELL_RENDERER_SIGNAL (object);

        switch (param_id) {
        case PROP_SIGNAL:
                g_value_set_uint (value, renderer->signal);
                break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
                break;
        }
}

/**
 * panel_cell_renderer_set_name:
 **/
static void
panel_cell_renderer_set_name (PanelCellRendererSignal *renderer)
{
        const gchar *icon_name = NULL;
        GIcon *icon;

        /* the 'Other...' entry */
        if (renderer->signal == 0) {
                g_object_set (renderer, "gicon", NULL, NULL);
                return;
        }

        if (renderer->signal < 20)
                icon_name = "network-wireless-signal-none-symbolic";
        else if (renderer->signal < 40)
                icon_name = "network-wireless-signal-weak-symbolic";
        else if (renderer->signal < 50)
                icon_name = "network-wireless-signal-ok-symbolic";
        else if (renderer->signal < 80)
                icon_name = "network-wireless-signal-good-symbolic";
        else
                icon_name = "network-wireless-signal-excellent-symbolic";

        icon = g_themed_icon_new_with_default_fallbacks (icon_name);
        g_object_set (renderer, "gicon", icon, NULL);
        g_object_unref (icon);
}

/**
 * panel_cell_renderer_signal_set_property:
 **/
static void
panel_cell_renderer_signal_set_property (GObject *object, guint param_id,
                                       const GValue *value, GParamSpec *pspec)
{
        PanelCellRendererSignal *renderer = PANEL_CELL_RENDERER_SIGNAL (object);

        switch (param_id) {
        case PROP_SIGNAL:
                renderer->signal = g_value_get_uint (value);
                panel_cell_renderer_set_name (renderer);
                break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
                break;
        }
}

/**
 * panel_cell_renderer_finalize:
 **/
static void
panel_cell_renderer_finalize (GObject *object)
{
        PanelCellRendererSignal *renderer;
        renderer = PANEL_CELL_RENDERER_SIGNAL (object);
        g_free (renderer->icon_name);
        G_OBJECT_CLASS (parent_class)->finalize (object);
}

/**
 * panel_cell_renderer_signal_class_init:
 **/
static void
panel_cell_renderer_signal_class_init (PanelCellRendererSignalClass *class)
{
        GObjectClass *object_class = G_OBJECT_CLASS (class);
        object_class->finalize = panel_cell_renderer_finalize;

        parent_class = g_type_class_peek_parent (class);

        object_class->get_property = panel_cell_renderer_signal_get_property;
        object_class->set_property = panel_cell_renderer_signal_set_property;

        g_object_class_install_property (object_class, PROP_SIGNAL,
                                         g_param_spec_uint ("signal", NULL,
                                                            NULL,
                                                            0, G_MAXUINT, 0,
                                                            G_PARAM_READWRITE));
}

/**
 * panel_cell_renderer_signal_init:
 **/
static void
panel_cell_renderer_signal_init (PanelCellRendererSignal *renderer)
{
        renderer->signal = 0;
        renderer->icon_name = NULL;
}

/**
 * panel_cell_renderer_signal_new:
 **/
GtkCellRenderer *
panel_cell_renderer_signal_new (void)
{
        return g_object_new (PANEL_TYPE_CELL_RENDERER_SIGNAL, NULL);
}