f8a9844d80
Added can_generate_small_preview() so the generator uses generate() or generate_from_path() if it returns true Added can_generate_small_preview() and generate_small_preview_automatically() to the scripting languages
67 lines
2.5 KiB
XML
67 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="EditorResourcePreviewGenerator" inherits="Reference" category="Core" version="3.2">
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<brief_description>
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Custom generator of previews.
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</brief_description>
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<description>
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Custom code to generate previews. Please check "file_dialog/thumbnail_size" in EditorSettings to find out the right size to do previews at.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="can_generate_small_preview" qualifiers="virtual">
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<return type="bool">
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</return>
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<description>
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If this function returns true the generator will call [method generate] or [method generate_from_path] for small previews too.
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By default it returns false.
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</description>
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</method>
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<method name="generate" qualifiers="virtual">
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<return type="Texture">
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</return>
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<argument index="0" name="from" type="Resource">
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</argument>
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<argument index="1" name="size" type="Vector2">
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</argument>
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<description>
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Generate a preview from a given resource with the specified size. This must always be implemented.
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Returning an empty texture is an OK way to fail and let another generator take care.
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Care must be taken because this function is always called from a thread (not the main thread).
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</description>
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</method>
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<method name="generate_from_path" qualifiers="virtual">
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<return type="Texture">
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</return>
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<argument index="0" name="path" type="String">
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</argument>
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<argument index="1" name="size" type="Vector2">
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</argument>
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<description>
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Generate a preview directly from a path with the specified size. Implementing this is optional, as default code will load and call [method generate].
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Returning an empty texture is an OK way to fail and let another generator take care.
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Care must be taken because this function is always called from a thread (not the main thread).
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</description>
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</method>
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<method name="generate_small_preview_automatically" qualifiers="virtual">
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<return type="bool">
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</return>
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<description>
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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].
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By default it returns false.
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</description>
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</method>
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<method name="handles" qualifiers="virtual">
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<return type="bool">
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</return>
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<argument index="0" name="type" type="String">
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</argument>
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<description>
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Return if your generator supports this resource type.
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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</class>
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