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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "EditorResourcePreview" inherits= "Node" version= "4.0" >
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<brief_description >
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Helper to generate previews of resources or files.
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</brief_description>
<description >
This object is used to generate previews for resources of files.
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[b]Note:[/b] This class shouldn't be instantiated directly. Instead, access the singleton using [method EditorInterface.get_resource_previewer].
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</description>
<tutorials >
</tutorials>
<methods >
<method name= "add_preview_generator" >
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<return type= "void" />
<argument index= "0" name= "generator" type= "EditorResourcePreviewGenerator" />
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<description >
Create an own, custom preview generator.
</description>
</method>
<method name= "check_for_invalidation" >
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<return type= "void" />
<argument index= "0" name= "path" type= "String" />
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<description >
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Check if the resource changed, if so, it will be invalidated and the corresponding signal emitted.
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</description>
</method>
<method name= "queue_edited_resource_preview" >
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<return type= "void" />
<argument index= "0" name= "resource" type= "Resource" />
<argument index= "1" name= "receiver" type= "Object" />
<argument index= "2" name= "receiver_func" type= "StringName" />
<argument index= "3" name= "userdata" type= "Variant" />
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<description >
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Queue the [code]resource[/code] being edited for preview. Once the preview is ready, the [code]receiver[/code]'s [code]receiver_func[/code] will be called. The [code]receiver_func[/code] must take the following four arguments: [String] path, [Texture2D] preview, [Texture2D] thumbnail_preview, [Variant] userdata. [code]userdata[/code] can be anything, and will be returned when [code]receiver_func[/code] is called.
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[b]Note:[/b] If it was not possible to create the preview the [code]receiver_func[/code] will still be called, but the preview will be null.
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</description>
</method>
<method name= "queue_resource_preview" >
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<return type= "void" />
<argument index= "0" name= "path" type= "String" />
<argument index= "1" name= "receiver" type= "Object" />
<argument index= "2" name= "receiver_func" type= "StringName" />
<argument index= "3" name= "userdata" type= "Variant" />
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<description >
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Queue a resource file located at [code]path[/code] for preview. Once the preview is ready, the [code]receiver[/code]'s [code]receiver_func[/code] will be called. The [code]receiver_func[/code] must take the following four arguments: [String] path, [Texture2D] preview, [Texture2D] thumbnail_preview, [Variant] userdata. [code]userdata[/code] can be anything, and will be returned when [code]receiver_func[/code] is called.
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[b]Note:[/b] If it was not possible to create the preview the [code]receiver_func[/code] will still be called, but the preview will be null.
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</description>
</method>
<method name= "remove_preview_generator" >
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<return type= "void" />
<argument index= "0" name= "generator" type= "EditorResourcePreviewGenerator" />
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<description >
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Removes a custom preview generator.
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</description>
</method>
</methods>
<signals >
<signal name= "preview_invalidated" >
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<argument index= "0" name= "path" type= "String" />
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<description >
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Emitted if a preview was invalidated (changed). [code]path[/code] corresponds to the path of the preview.
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</description>
</signal>
</signals>
</class>