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<?xml version="1.0" encoding="UTF-8" ?>
<class name="EditorResourcePreviewGenerator" inherits="Reference" category="Core" version="3.2">
<brief_description>
Custom generator of previews.
</brief_description>
<description>
Custom code to generate previews. Please check "file_dialog/thumbnail_size" in EditorSettings to find out the right size to do previews at.
</description>
<tutorials>
</tutorials>
<methods>
<method name="can_generate_small_preview" qualifiers="virtual">
<return type="bool">
</return>
<description>
If this function returns true the generator will call [method generate] or [method generate_from_path] for small previews too.
By default it returns false.
</description>
</method>
<method name="generate" qualifiers="virtual">
<return type="Texture">
</return>
<argument index="0" name="from" type="Resource">
</argument>
<argument index="1" name="size" type="Vector2">
</argument>
<description>
Generate a preview from a given resource with the specified size. This must always be implemented.
Returning an empty texture 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).
</description>
</method>
<method name="generate_from_path" qualifiers="virtual">
<return type="Texture">
</return>
<argument index="0" name="path" type="String">
</argument>
<argument index="1" name="size" type="Vector2">
</argument>
<description>
Generate a preview directly from a path with the specified size. Implementing this is optional, as default code will load and call [method generate].
Returning an empty texture 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).
</description>
</method>
<method name="generate_small_preview_automatically" qualifiers="virtual">
<return type="bool">
</return>
<description>
If this function returns true the generator will automatically generate the small previews from the normal preview texture generated by the methods [method generate] or [method generate_from_path].
By default it returns false.
</description>
</method>
<method name="handles" qualifiers="virtual">
<return type="bool">
</return>
<argument index="0" name="type" type="String">
</argument>
<description>
Returns if your generator supports this resource type.
</description>
</method>
</methods>
<constants>
</constants>
</class>
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