This node is used to generate previews for resources or files.
Emitted if a preview was invalidated (changed). path
corresponds to the path of the preview.
Create an own, custom preview generator.
Check if the resource changed, if so, it will be invalidated and the corresponding signal emitted.
Queue the resource
being edited for preview. Once the preview is ready, the receiver
's receiver_func
will be called. The receiver_func
must take the following four arguments: String path, Texture2D preview, Texture2D thumbnail_preview, Variant userdata. userdata
can be anything, and will be returned when receiver_func
is called.
Note: If it was not possible to create the preview the receiver_func
will still be called, but the preview will be null
.
Queue a resource file located at path
for preview. Once the preview is ready, the receiver
's receiver_func
will be called. The receiver_func
must take the following four arguments: String path, Texture2D preview, Texture2D thumbnail_preview, Variant userdata. userdata
can be anything, and will be returned when receiver_func
is called.
Note: If it was not possible to create the preview the receiver_func
will still be called, but the preview will be null
.
Removes a custom preview generator.