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RefCounted

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EditorResourcePreviewGenerator

Table of contents

EditorResourcePreviewGenerator #

is_refcounted, is_instantiable, resource, editor, not_builtin_classes

Custom generator of previews.

Custom code to generate previews. Check EditorSettings.filesystem/file_dialog/thumbnail_size to find a proper size to generate previews at.

Members #

Methods #

virtual const func _can_generate_small_preview() -> bool#

If this function returns true, the generator will call _generate or _generate_from_path for small previews as well.

By default, it returns false.

virtual const func _generate(metadata: Dictionary) -> Texture2D#

Generate a preview from a given resource with the specified size. This must always be implemented.

Returning null is an OK way to fail and let another generator take care.

Care must be taken because this function is always called from a thread (not the main thread).

metadata dictionary can be modified to store file-specific metadata that can be used in EditorResourceTooltipPlugin._make_tooltip_for_path (like image size, sample length etc.).

virtual const func _generate_from_path(metadata: Dictionary) -> Texture2D#

Generate a preview directly from a path with the specified size. Implementing this is optional, as default code will load and call _generate.

Returning null is an OK way to fail and let another generator take care.

Care must be taken because this function is always called from a thread (not the main thread).

metadata dictionary can be modified to store file-specific metadata that can be used in EditorResourceTooltipPlugin._make_tooltip_for_path (like image size, sample length etc.).

virtual const func _generate_small_preview_automatically() -> bool#

If this function returns true, the generator will automatically generate the small previews from the normal preview texture generated by the methods _generate or _generate_from_path.

By default, it returns false.

virtual const func _handles(type: String) -> bool#

Returns true if your generator supports the resource of type type.

Annotations #

Constants #

Constructors #

Enums #

Operators #

Signals #

Theme Items #

Tutorials #