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ILayer.java
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ILayer.java
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package nl.weeaboo.vn.scene;
import javax.annotation.Nullable;
import nl.weeaboo.vn.image.IScreenshotBuffer;
/**
* Group of visual elements.
*/
public interface ILayer extends IAxisAlignedContainer {
@Override
ILayer getParent();
/**
* Adds contents to the layer.
*/
void add(IVisualElement d);
/**
* Returns {@code true} if the specified layer is a descendant of this layer.
*/
boolean containsLayer(@Nullable ILayer layer);
/**
* Returns a read-only view of all layer children (non-recursive).
*/
Iterable<? extends ILayer> getSubLayers();
/**
* Returns a buffer for pending screenshots. Screenshots requests queued in this buffer will be fullfilled
* at some later time.
*/
IScreenshotBuffer getScreenshotBuffer();
/**
* Changes the relative render order of this element.
* @see IVisualElement#getZ()
*/
void setZ(short z);
}