Polish interface artwork and controller behavior

ui/components/locked_content_presentation.gd

@@ -0,0 +1,67 @@
+class_name LockedContentPresentation
+extends RefCounted
+
+const UtilityPageStyleType = preload("res://ui/utility_page_style.gd")
+const ICON: Texture2D = preload("res://ui/icons/pictograms/lock_light.png")
+
+const LARGE_ICON_SIZE: float = 24.0
+const COMPACT_ICON_SIZE: float = 18.0
+const LARGE_PRESENTATION_THRESHOLD: float = 70.0
+const ICON_ALPHA: float = 0.18
+const BACKGROUND_ALPHA: float = 0.38
+
+
+static func icon_size_for(presentation_size: Vector2) -> Vector2:
+	var edge: float = (
+		LARGE_ICON_SIZE
+		if minf(presentation_size.x, presentation_size.y)
+		>= LARGE_PRESENTATION_THRESHOLD
+		else COMPACT_ICON_SIZE
+	)
+	return Vector2(edge, edge)
+
+
+static func icon_modulate(alpha: float = ICON_ALPHA) -> Color:
+	return Color(UtilityPageStyleType.OCEAN_DISABLED, alpha)
+
+
+static func disabled_background_color() -> Color:
+	return Color(UtilityPageStyleType.OCEAN_FIELD, BACKGROUND_ALPHA)
+
+
+static func make_icon_texture(
+	icon_size: int = int(COMPACT_ICON_SIZE),
+	canvas_size: int = icon_size,
+) -> Texture2D:
+	var source_image: Image = ICON.get_image()
+	if source_image == null or source_image.is_empty():
+		return ICON
+	var image := source_image.duplicate() as Image
+	if image.is_compressed() and image.decompress() != OK:
+		return ICON
+	image.convert(Image.FORMAT_RGBA8)
+	image.resize(
+		icon_size,
+		icon_size,
+		Image.INTERPOLATE_NEAREST,
+	)
+	if canvas_size > icon_size:
+		var canvas := Image.create(
+			canvas_size,
+			canvas_size,
+			false,
+			Image.FORMAT_RGBA8,
+		)
+		canvas.fill(Color.TRANSPARENT)
+		var inset := Vector2i.ONE * ((canvas_size - icon_size) / 2)
+		canvas.blend_rect(
+			image,
+			Rect2i(Vector2i.ZERO, Vector2i(icon_size, icon_size)),
+			inset,
+		)
+		image = canvas
+	var texture := ImageTexture.create_from_image(image)
+	texture.set_meta(&"locked_content_icon", true)
+	texture.set_meta(&"locked_content_icon_size", icon_size)
+	texture.set_meta(&"locked_content_canvas_size", canvas_size)
+	return texture