Add Radio Button Example

addons/gd_data_binding/scripts/converters/case_binding_converter.gd

@@ -0,0 +1,18 @@
+class_name CaseBindingConverter
+extends BindingConverter
+
+var _case_value: Variant
+var _last_source_value: Variant
+
+
+func _init(case_value: Variant):
+	_case_value = case_value
+
+
+func source_to_target(source_value: Variant) -> Variant:
+	_last_source_value = source_value
+	return source_value == _case_value
+
+
+func target_to_source(target_value: Variant) -> Variant:
+	return _case_value if target_value else _last_source_value

examples/buttons.gd

@@ -22,6 +22,18 @@ func _ready():
 	_data.bind(&"option_index").using(str).to_label($Col3/DisplayRow/OptionIndexLabel)
 	_data.bind(&"option_index").to_option_button($Col3/OptionButton)
 
+	# gdlint:ignore = constant-name
+	const Mode = Data.TravelMode
+	var get_mode_key = func(mode: Mode): return Mode.find_key(mode)
+	# gdlint:ignore = function-variable-name,
+	var Case = CaseBindingConverter
+	_data.bind(&"travel_mode").using(get_mode_key).to_label($Col4/DisplayRow/RadioValueLabel)
+	_data.bind(&"travel_mode").using(Case.new(Mode.DRIVING)).to_check_box($Col4/DrivingCheckBox)
+	_data.bind(&"travel_mode").using(Case.new(Mode.TRANSIT)).to_check_box($Col4/TransitCheckBox)
+	_data.bind(&"travel_mode").using(Case.new(Mode.WALKING)).to_check_box($Col4/WalkingCheckBox)
+	_data.bind(&"travel_mode").using(Case.new(Mode.CYCLING)).to_check_box($Col4/CyclingCheckBox)
+	_data.bind(&"travel_mode").using(Case.new(Mode.FLIGHTS)).to_check_box($Col4/FlightsCheckBox)
+
 
 func _on_on_button_pressed():
 	_data.binary_state = true
@@ -44,12 +56,16 @@ func _on_color_button_pressed(color):
 
 
 class Data:
+	enum TravelMode { DRIVING, TRANSIT, WALKING, CYCLING, FLIGHTS }
+
 	var binary_state = false
 
 	var color = Color.RED
 
 	var option_index: int = -1
 
+	var travel_mode: TravelMode = TravelMode.DRIVING
+
 
 class BoolToOnOff:
 	extends BindingConverter

examples/buttons.tscn

@@ -1,8 +1,18 @@
-[gd_scene load_steps=3 format=3 uid="uid://p7swf5sjivj0"]
+[gd_scene load_steps=8 format=3 uid="uid://p7swf5sjivj0"]
 
 [ext_resource type="Script" path="res://examples/buttons.gd" id="1_sfuve"]
 [ext_resource type="LabelSettings" uid="uid://bcnt8xhjv02bx" path="res://examples/header_label_settings.tres" id="2_u12hm"]
 
+[sub_resource type="ButtonGroup" id="ButtonGroup_w2qvh"]
+
+[sub_resource type="ButtonGroup" id="ButtonGroup_hari6"]
+
+[sub_resource type="ButtonGroup" id="ButtonGroup_77akt"]
+
+[sub_resource type="ButtonGroup" id="ButtonGroup_x7oww"]
+
+[sub_resource type="ButtonGroup" id="ButtonGroup_4ynul"]
+
 [node name="Buttons" type="HBoxContainer"]
 anchors_preset = 8
 anchor_left = 0.5
@@ -173,6 +183,54 @@ text = "Select 3"
 layout_mode = 2
 text = "Deselect"
 
+[node name="VSeparator3" type="VSeparator" parent="."]
+layout_mode = 2
+
+[node name="Col4" type="VBoxContainer" parent="."]
+custom_minimum_size = Vector2(200, 0)
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Col4"]
+layout_mode = 2
+text = "Radio Button"
+label_settings = ExtResource("2_u12hm")
+
+[node name="DisplayRow" type="HBoxContainer" parent="Col4"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Col4/DisplayRow"]
+layout_mode = 2
+size_flags_horizontal = 3
+text = "Current Value:"
+
+[node name="RadioValueLabel" type="Label" parent="Col4/DisplayRow"]
+layout_mode = 2
+
+[node name="DrivingCheckBox" type="CheckBox" parent="Col4"]
+layout_mode = 2
+button_group = SubResource("ButtonGroup_w2qvh")
+text = "Driving"
+
+[node name="TransitCheckBox" type="CheckBox" parent="Col4"]
+layout_mode = 2
+button_group = SubResource("ButtonGroup_hari6")
+text = "Transit"
+
+[node name="WalkingCheckBox" type="CheckBox" parent="Col4"]
+layout_mode = 2
+button_group = SubResource("ButtonGroup_77akt")
+text = "Walking"
+
+[node name="CyclingCheckBox" type="CheckBox" parent="Col4"]
+layout_mode = 2
+button_group = SubResource("ButtonGroup_x7oww")
+text = "Cycling"
+
+[node name="FlightsCheckBox" type="CheckBox" parent="Col4"]
+layout_mode = 2
+button_group = SubResource("ButtonGroup_4ynul")
+text = "Flights"
+
 [connection signal="pressed" from="Col1/HBoxContainer/OnButton" to="." method="_on_on_button_pressed"]
 [connection signal="pressed" from="Col1/HBoxContainer/OffButton" to="." method="_on_off_button_pressed"]
 [connection signal="pressed" from="Col2/HBoxContainer/RedButton" to="." method="_on_color_button_pressed" binds= [Color(1, 0, 0, 1)]]