Move RF amp control code into new class.

firmware/application/analog_audio_app.cpp

@@ -182,10 +182,6 @@ void AnalogAudioView::on_baseband_bandwidth_changed(uint32_t bandwidth_hz) {
 	receiver_model.set_baseband_bandwidth(bandwidth_hz);
 }
 
-void AnalogAudioView::on_rf_amp_changed(bool v) {
-	receiver_model.set_rf_amp(v);
-}
-
 void AnalogAudioView::on_lna_changed(int32_t v_db) {
 	receiver_model.set_lna(v_db);
 }
@@ -245,11 +241,6 @@ void AnalogAudioView::on_show_options_frequency() {
 void AnalogAudioView::on_show_options_rf_gain() {
 	auto widget = std::make_unique<RadioGainOptionsView>(options_view_rect, &style_options_group);
 
-	widget->set_rf_amp(receiver_model.rf_amp());
-	widget->on_change_rf_amp = [this](bool enable) {
-		this->on_rf_amp_changed(enable);
-	};
-
 	set_options_widget(std::move(widget));
 	field_lna.set_style(&style_options_group);
 }

firmware/application/analog_audio_app.hpp

@@ -150,7 +150,6 @@ private:
 
 	void on_tuning_frequency_changed(rf::Frequency f);
 	void on_baseband_bandwidth_changed(uint32_t bandwidth_hz);
-	void on_rf_amp_changed(bool v);
 	void on_lna_changed(int32_t v_db);
 	void on_vga_changed(int32_t v_db);
 	void on_modulation_changed(const ReceiverModel::Mode modulation);

firmware/application/ui_receiver.cpp

@@ -269,6 +269,25 @@ void FrequencyOptionsView::on_reference_ppm_correction_changed(int32_t v) {
 	}
 }
 
+/* RFAmpField ************************************************************/
+
+RFAmpField::RFAmpField(
+	Point parent_pos
+) : NumberField {
+		parent_pos,
+		1,
+		{ 0, 1 },
+		1,
+		' ',
+	}
+{
+	set_value(receiver_model.rf_amp());
+
+	on_change = [](int32_t v) {
+		receiver_model.set_rf_amp(v);
+	};
+}
+
 /* RadioGainOptionsView **************************************************/
 
 RadioGainOptionsView::RadioGainOptionsView(
@@ -282,20 +301,6 @@ RadioGainOptionsView::RadioGainOptionsView(
 		&label_rf_amp,
 		&field_rf_amp,
 	} });
-
-	field_rf_amp.on_change = [this](int32_t v) {
-		this->on_rf_amp_changed(v);
-	};
-}
-
-void RadioGainOptionsView::set_rf_amp(int32_t v_db) {
-	field_rf_amp.set_value(v_db);
-}
-
-void RadioGainOptionsView::on_rf_amp_changed(bool enable) {
-	if( on_change_rf_amp ) {
-		on_change_rf_amp(enable);
-	}
 }
 
 /* LNAGainField **********************************************************/

firmware/application/ui_receiver.hpp

@@ -281,29 +281,24 @@ private:
 	};
 };
 
+class RFAmpField : public NumberField {
+public:
+	RFAmpField(Point parent_pos);
+};
+
 class RadioGainOptionsView : public View {
 public:
-	std::function<void(bool)> on_change_rf_amp;
-
 	RadioGainOptionsView(const Rect parent_rect, const Style* const style);
 
-	void set_rf_amp(int32_t v_db);
-
 private:
 	Text label_rf_amp {
 		{ 0 * 8, 0 * 16, 3 * 8, 1 * 16 },
 		"Amp"
 	};
 
-	NumberField field_rf_amp {
+	RFAmpField field_rf_amp {
 		{ 4 * 8, 0 * 16},
-		1,
-		{ 0, 1 },
-		1,
-		' ',
 	};
-
-	void on_rf_amp_changed(bool enable);
 };
 
 class LNAGainField : public NumberField {