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Pixelorama/src/Classes/BaseCel.gd
Emmanouil Papadeas 1a769293fc Dim cel buttons based on whether the cel is transparent/empty or not
Should replace #817, but in a more optimized way, as it does not rely on _input().
2023-03-17 00:02:01 +02:00

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GDScript

class_name BaseCel
extends Reference
## Base class for cel properties.
## The term "cel" comes from "celluloid" (https://en.wikipedia.org/wiki/Cel).
signal texture_changed
var opacity: float
var image_texture: ImageTexture
# If the cel is linked a ref to the link set Dictionary this cel is in, or null if not linked:
var link_set = null # { "cels": Array, "hue": float } or null
var transformed_content: Image # Used in transformations (moving, scaling etc with selections)
# Methods to Override:
# The content methods deal with the unique content of each cel type. For example, an Image for
# PixelLayers, or a Dictionary of settings for a procedural layer type, and null for Groups.
# Can be used for linking/unlinking cels, copying, and deleting content
func get_content():
return null
func set_content(_content, _texture: ImageTexture = null) -> void:
return
# Can be used to delete the content of the cel with set_content
# (using the old content from get_content as undo data)
func create_empty_content():
return []
# Can be used for creating copy content for copying cels or unlinking cels
func copy_content():
return []
# Returns the image var for image based cel types, or a render for procedural types.
# It's meant for read-only usage of image data, such as copying selections or color picking.
func get_image() -> Image:
return null
func update_texture() -> void:
emit_signal("texture_changed")
return
func save_image_data_to_pxo(_file: File) -> void:
return
func load_image_data_from_pxo(_file: File, _project_size: Vector2) -> void:
return
func instantiate_cel_button() -> Node:
return null