Add palette to Wireless device on Home view showing channel too

Convert the tooltip to a palette and show the wireless
channel in the palette.

shell/view/devices/network/wireless.py

@@ -15,9 +15,14 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
+from gettext import gettext as _
+
+import gtk
+
 from sugar.graphics.icon import get_icon_state
 from sugar.graphics.icon import CanvasIcon
 from sugar.graphics import style
+from sugar.graphics.palette import Palette
 
 from model.devices.network import wireless
 from model.devices import device
@@ -28,26 +33,42 @@ class DeviceView(CanvasIcon):
     def __init__(self, model):
         CanvasIcon.__init__(self, size=style.MEDIUM_ICON_SIZE)
         self._model = model
+        self._palette = WirelessPalette(self._get_palette_primary_text())
+        self.set_palette(self._palette)
+        self._counter = 0
+        self._palette.set_frequency(self._model.props.frequency)
 
         model.connect('notify::name', self._name_changed_cb)
         model.connect('notify::strength', self._strength_changed_cb)
         model.connect('notify::state', self._state_changed_cb)
 
-        self.set_tooltip(self._model.props.name)
         self._update_icon()
         self._update_state()
 
+    def _get_palette_primary_text(self):
+        if self._model.props.state == device.STATE_INACTIVE:
+            return _("Disconnected")
+        return self._model.props.name
+
     def _strength_changed_cb(self, model, pspec):
         self._update_icon()
+        # Only update frequency periodically
+        if self._counter % 4 == 0:
+            self._palette.set_frequency(self._model.props.frequency)
+        self._counter += 1
 
     def _name_changed_cb(self, model, pspec):
-        self.palette.set_primary_text(self._model.props.name)
+        self.palette.set_primary_text(self._get_palette_primary_text())
 
     def _state_changed_cb(self, model, pspec):
         self._update_state()
+        self.palette.set_primary_text(self._get_palette_primary_text())
 
     def _update_icon(self):
-        icon_name = get_icon_state(_ICON_NAME, self._model.props.strength)
+        strength = self._model.props.strength
+        if self._model.props.state == device.STATE_INACTIVE:
+            strength = 0
+        icon_name = get_icon_state(_ICON_NAME, strength)
         if icon_name:
             self.props.icon_name = icon_name
 
@@ -58,8 +79,35 @@ class DeviceView(CanvasIcon):
             self.props.fill_color = style.COLOR_INACTIVE_FILL.get_svg()
             self.props.stroke_color = style.COLOR_INACTIVE_STROKE.get_svg()
         elif state == device.STATE_ACTIVATED:
-            self.props.fill_color = None
-            self.props.stroke_color = None
+            (stroke, fill) = self._model.get_active_network_colors()
+            self.props.stroke_color = stroke
+            self.props.fill_color = fill
         elif state == device.STATE_INACTIVE:
             self.props.fill_color = style.COLOR_INACTIVE_FILL.get_svg()
             self.props.stroke_color = style.COLOR_INACTIVE_STROKE.get_svg()
+
+class WirelessPalette(Palette):
+    def __init__(self, primary_text):
+        Palette.__init__(self, primary_text)
+
+        self._chan_label = gtk.Label()
+        self._chan_label.show()
+
+        vbox = gtk.VBox()
+        vbox.pack_start(self._chan_label)
+        vbox.show()
+
+        self.set_content(vbox)
+
+    def set_frequency(self, freq):
+        chans = { 2.412: 1, 2.417: 2, 2.422: 3, 2.427: 4,
+                  2.432: 5, 2.437: 6, 2.442: 7, 2.447: 8,
+                  2.452: 9, 2.457: 10, 2.462: 11, 2.467: 12,
+                  2.472: 13
+                }
+        try:
+            chan = chans[freq]
+        except KeyError:
+            chan = 0
+        self._chan_label.set_text("%s: %d" % (_("Channel"), chan))
+