[gnome-control-center] network: add a cell renderer for displaying the AP signal strength

[Richard Hughes <rhughes src gnome org>]

commit 6b49a205877515b0f64315cfaac2a5ed483b8def
Author: Richard Hughes <richard hughsie com>
Date:   Wed Dec 15 19:19:21 2010 +0000

    network: add a cell renderer for displaying the AP signal strength

 panels/network/Makefile.am                  |    2 +
 panels/network/panel-cell-renderer-signal.c |  155 +++++++++++++++++++++++++++
 panels/network/panel-cell-renderer-signal.h |   60 ++++++++++
 3 files changed, 217 insertions(+), 0 deletions(-)
---
diff --git a/panels/network/Makefile.am b/panels/network/Makefile.am
index e93a71a..f0d7deb 100644
--- a/panels/network/Makefile.am
+++ b/panels/network/Makefile.am
@@ -13,6 +13,8 @@ libnetwork_la_SOURCES =					\
 	network-module.c				\
 	panel-cell-renderer-mode.c			\
 	panel-cell-renderer-mode.h			\
+	panel-cell-renderer-signal.c			\
+	panel-cell-renderer-signal.h			\
 	cc-network-panel.c				\
 	cc-network-panel.h
 
diff --git a/panels/network/panel-cell-renderer-signal.c b/panels/network/panel-cell-renderer-signal.c
new file mode 100644
index 0000000..23b1df1
--- /dev/null
+++ b/panels/network/panel-cell-renderer-signal.c
@@ -0,0 +1,155 @@
+/* -*- Signal: C; tab-width: 8; indent-tabs-signal: t; 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;
+
+	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);
+}
+
diff --git a/panels/network/panel-cell-renderer-signal.h b/panels/network/panel-cell-renderer-signal.h
new file mode 100644
index 0000000..f63d10d
--- /dev/null
+++ b/panels/network/panel-cell-renderer-signal.h
@@ -0,0 +1,60 @@
+/* -*- Signal: C; tab-width: 8; indent-tabs-signal: t; 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.
+ */
+
+#ifndef PANEL_CELL_RENDERER_SIGNAL_H
+#define PANEL_CELL_RENDERER_SIGNAL_H
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+#include "panel-common.h"
+
+#define PANEL_TYPE_CELL_RENDERER_SIGNAL			(panel_cell_renderer_signal_get_type())
+#define PANEL_CELL_RENDERER_SIGNAL(obj)			(G_TYPE_CHECK_INSTANCE_CAST((obj), PANEL_TYPE_CELL_RENDERER_SIGNAL, PanelCellRendererSignal))
+#define PANEL_CELL_RENDERER_SIGNAL_CLASS(cls)		(G_TYPE_CHECK_CLASS_CAST((cls), PANEL_TYPE_CELL_RENDERER_SIGNAL, PanelCellRendererSignalClass))
+#define PANEL_IS_CELL_RENDERER_SIGNAL(obj)		(G_TYPE_CHECK_INSTANCE_TYPE((obj), PANEL_TYPE_CELL_RENDERER_SIGNAL))
+#define PANEL_IS_CELL_RENDERER_SIGNAL_CLASS(cls)	(G_TYPE_CHECK_CLASS_TYPE((cls), PANEL_TYPE_CELL_RENDERER_SIGNAL))
+#define PANEL_CELL_RENDERER_SIGNAL_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS((obj), PANEL_TYPE_CELL_RENDERER_SIGNAL, PanelCellRendererSignalClass))
+
+G_BEGIN_DECLS
+
+typedef struct _PanelCellRendererSignal		PanelCellRendererSignal;
+typedef struct _PanelCellRendererSignalClass	PanelCellRendererSignalClass;
+
+struct _PanelCellRendererSignal
+{
+	GtkCellRendererPixbuf	 parent;
+	guint			 signal;
+	gchar			*icon_name;
+};
+
+struct _PanelCellRendererSignalClass
+{
+	GtkCellRendererPixbufClass parent_class;
+};
+
+GType		 panel_cell_renderer_signal_get_type	(void);
+GtkCellRenderer	*panel_cell_renderer_signal_new		(void);
+
+G_END_DECLS
+
+#endif /* PANEL_CELL_RENDERER_SIGNAL_H */
+