Moved sensors reading page to its own widget

src/widgets/sensor_readings_page.py

@@ -0,0 +1,46 @@
+# sensor_readings_page.py
+#
+# Copyright 2024 Daniele Verducci
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from gi.repository import Adw
+from gi.repository import Gtk
+from .ev_calculator import EVCalculator
+
+@Gtk.Template(resource_path='/eu/ichibi/Lumos/widgets/sensor_readings_page.ui')
+class SensorReadingsPage(Gtk.Box):
+    __gtype_name__ = 'SensorReadingsPage'
+
+    # Labels
+    lux_label = Gtk.Template.Child()
+    ev_label = Gtk.Template.Child()
+
+    def onValuesChanged(self, isoSpeed: int,  sensorValue: float, sensorUnit: str):
+        # Called when the light value changed
+
+        if self.lux_label:
+            self.lux_label.set_label("{:.0f} {}".format(sensorValue, sensorUnit))
+
+        # Check the unit is absolute ("lux"), otherwise there's no way to convert to an absolute EV value
+        if sensorUnit != "lux":
+            return
+
+        # Convert lux to EV
+        ev = EVCalculator.luxToEV(sensorValue)
+        if self.ev_label:
+            self.ev_label.set_label("{:.1f} EV".format(ev))
+

src/widgets/sensor_readings_page.ui

@@ -0,0 +1,33 @@
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <requires lib="adw" version="1.0"/>
+  <template class="SensorReadingsPage" parent="GtkBox">
+    <property name="orientation">1</property>
+    <property name="valign">3</property>
+    <property name="halign">3</property>
+    <child>
+      <object class="GtkImage" id="lux-icon">
+        <property name="icon-name">lightbulb-symbolic</property>
+        <property name="pixel-size">128</property>
+        <property name="margin-bottom">30</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkLabel" id="lux_label">
+        <property name="label" translatable="no">XXX Lux</property>
+        <style>
+          <class name="title-1"/>
+        </style>
+      </object>
+    </child>
+    <child>
+      <object class="GtkLabel" id="ev_label">
+        <property name="label" translatable="no">-- EV</property>
+        <style>
+          <class name="title-1"/>
+        </style>
+      </object>
+    </child>
+  </template>
+</interface>
+

src/widgets/widgets_loader.py

@@ -3,10 +3,12 @@ from gi.repository import GObject
 from .time_priority_page import TimePriorityPage
 from .aperture_priority_page import AperturePriorityPage
 from .manual_exposure_page  import ManualExposurePage
+from .sensor_readings_page  import SensorReadingsPage
 
 # Register widgets to be used in templates UI
 def registerWidgets() -> None:
     GObject.type_ensure(TimePriorityPage)
     GObject.type_ensure(AperturePriorityPage)
     GObject.type_ensure(ManualExposurePage)
+    GObject.type_ensure(SensorReadingsPage)