Add UI scaling through menu option

2 files changed, 82 insertions, 1 deletions

diff --git a/game/src/OptionMenu/GuiScaleSelector.gd b/game/src/OptionMenu/GuiScaleSelector.gd
new file mode 100644
index 0000000..ec94269
--- /dev/null
+++ b/game/src/OptionMenu/GuiScaleSelector.gd
@@ -0,0 +1,65 @@
+extends SettingOptionButton
+
+@export
+var default_value : float = GuiScale.error_guiscale
+
+func _find_guiscale_index_by_value(value : float) -> int:
+	for item_index in item_count:
+		if get_item_metadata(item_index) == value:
+			return item_index
+	return -1
+
+func _sync_guiscales(to_select:float=GuiScale.get_current_guiscale()) -> void:
+	clear()
+	default_selected = -1
+	selected = -1
+	for guiscale_value in GuiScale.get_guiscale_value_list():
+		add_item(GuiScale.get_guiscale_display_name(guiscale_value))
+		set_item_metadata(item_count - 1, guiscale_value)
+
+		if guiscale_value == default_value:
+			default_selected = item_count - 1
+
+		if guiscale_value == to_select:
+			selected = item_count - 1
+
+	if default_selected == -1:
+		default_selected = item_count - 1
+
+	if selected == -1:
+		selected = default_selected
+	
+func _setup_button():
+	print("Setup Gui scales Button")
+	if default_value <= 0:
+		#TODO: verify this project setting is what we actually want
+		#print("get default from project settings, default was %f",default_value)
+		default_value = ProjectSettings.get_setting("display/window/stretch/scale")
+	GuiScale.add_guiscale(default_value,&"default")
+	_sync_guiscales()
+
+func _get_value_for_file(select_value : int):
+	if _valid_index(select_value):
+		return get_item_metadata(select_value)
+	else:
+		return null
+
+func _set_value_from_file(load_value):
+	#no need to match types like resolution does since we don't 
+	#intend on supporting strings
+	var target_guiscale = load_value
+	selected = _find_guiscale_index_by_value(target_guiscale)
+	if selected != -1:return
+	if GuiScale.add_guiscale(target_guiscale):
+		_sync_guiscales(target_guiscale)
+		return
+	push_error("Setting value '%s' invalid for setting [%s] %s" % [load_value, section_name, setting_name])
+	selected = default_selected
+
+func _on_item_selected(index:int):
+	if _valid_index(index):
+		print("Change GUI scale on selector index: %d" % index)
+		GuiScale.set_guiscale(get_item_metadata(index))
+	else:
+		push_error("Invalid GuiScaleSelector index: %d" % index)
+		reset_setting()
diff --git a/game/src/OptionMenu/VideoTab.tscn b/game/src/OptionMenu/VideoTab.tscn
index c92f7f7..8fc8747 100644
--- a/game/src/OptionMenu/VideoTab.tscn
+++ b/game/src/OptionMenu/VideoTab.tscn
@@ -1,8 +1,9 @@
-[gd_scene load_steps=7 format=3 uid="uid://bq3awxxjn1tuw"]
+[gd_scene load_steps=8 format=3 uid="uid://bq3awxxjn1tuw"]
 
 [ext_resource type="Script" path="res://src/OptionMenu/ResolutionSelector.gd" id="1_i8nro"]
 [ext_resource type="Script" path="res://src/OptionMenu/VideoTab.gd" id="1_jvv62"]
 [ext_resource type="Script" path="res://src/OptionMenu/ScreenModeSelector.gd" id="2_wa7vw"]
+[ext_resource type="Script" path="res://src/OptionMenu/GuiScaleSelector.gd" id="3_pgc5d"]
 [ext_resource type="Script" path="res://src/OptionMenu/MonitorDisplaySelector.gd" id="3_y6lyb"]
 [ext_resource type="Script" path="res://src/OptionMenu/RefreshRateSelector.gd" id="4_381mg"]
 [ext_resource type="Script" path="res://src/OptionMenu/QualityPresetSelector.gd" id="5_srg4v"]
@@ -42,6 +43,20 @@ script = ExtResource("1_i8nro")
 section_name = "video"
 setting_name = "resolution"
 
+[node name="GuiScaleLabel" type="Label" parent="VBoxContainer/GridContainer"]
+layout_mode = 2
+text = "OPTIONS_VIDEO_GUI_SCALE"
+
+[node name="GuiScaleSelector" type="OptionButton" parent="VBoxContainer/GridContainer"]
+editor_description = "UI-19"
+layout_mode = 2
+focus_neighbor_bottom = NodePath("../ScreenModeSelector")
+item_count = 1
+selected = 0
+popup/item_0/text = "MISSING"
+popup/item_0/id = 0
+script = ExtResource("3_pgc5d")
+
 [node name="ScreenModeLabel" type="Label" parent="VBoxContainer/GridContainer"]
 editor_description = "UI-44"
 layout_mode = 2
@@ -138,5 +153,6 @@ setting_name = "quality_preset"
 default_selected = 1
 
 [connection signal="item_selected" from="VBoxContainer/GridContainer/ResolutionSelector" to="VBoxContainer/GridContainer/ResolutionSelector" method="_on_item_selected"]
+[connection signal="item_selected" from="VBoxContainer/GridContainer/GuiScaleSelector" to="VBoxContainer/GridContainer/GuiScaleSelector" method="_on_item_selected"]
 [connection signal="item_selected" from="VBoxContainer/GridContainer/ScreenModeSelector" to="VBoxContainer/GridContainer/ScreenModeSelector" method="_on_item_selected"]
 [connection signal="item_selected" from="VBoxContainer/GridContainer/MonitorDisplaySelector" to="VBoxContainer/GridContainer/MonitorDisplaySelector" method="_on_item_selected"]