LedsPage: move LED mode to string to the bindings

This is more consistent with RatbagdButton, and one less translatable
file.

piper/ledspage.py

@@ -14,8 +14,6 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
-from gettext import gettext as _
-
 from .leddialog import LedDialog
 from .mousemap import MouseMap
 from .optionbutton import OptionButton
@@ -53,7 +51,7 @@ class LedsPage(Gtk.Box):
     def _set_profile(self, profile):
         self._profile = profile
         for led in profile.leds:
-            mode = self._mode_to_string(led.mode)
+            mode = RatbagdLed.LED_DESCRIPTION[led.mode]
             button = OptionButton(mode)
             button.connect("clicked", self._on_button_clicked, led)
             led.connect("notify::mode", self._on_led_mode_changed, button)
@@ -70,7 +68,7 @@ class LedsPage(Gtk.Box):
         self._set_profile(profile)
 
     def _on_led_mode_changed(self, led, pspec, button):
-        mode = self._mode_to_string(led.mode)
+        mode = RatbagdLed.LED_DESCRIPTION[led.mode]
         button.set_label(mode)
 
     def _on_button_clicked(self, button, led):
@@ -89,16 +87,3 @@ class LedsPage(Gtk.Box):
             led.brightness = dialog.brightness
             led.effect_rate = dialog.effect_rate
         dialog.destroy()
-
-    def _mode_to_string(self, mode):
-        # Converts a RatbagdLed mode to a string.
-        if mode == RatbagdLed.MODE_ON:
-            return _("Solid")
-        elif mode == RatbagdLed.MODE_CYCLE:
-            return _("Cycle")
-        elif mode == RatbagdLed.MODE_BREATHING:
-            return _("Breathing")
-        elif mode == RatbagdLed.MODE_OFF:
-            return _("Off")
-        else:
-            return _("N/A")

piper/ratbagd.py

@@ -742,6 +742,13 @@ class RatbagdLed(_RatbagdDBus):
     MODE_CYCLE = 2
     MODE_BREATHING = 3
 
+    LED_DESCRIPTION = {
+        MODE_OFF: _("Off"),
+        MODE_ON: _("Solid"),
+        MODE_CYCLE: _("Cycle"),
+        MODE_BREATHING: _("Breathing"),
+    }
+
     def __init__(self, object_path):
         _RatbagdDBus.__init__(self, "Led", object_path)