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package org.netbeans.api.visual.layout;

import org.netbeans.api.visual.widget.Widget;

/**
 * This class is responsible for layout and justification of children widgets of a widget where the layout is assigned.
 * Built-in layouts could be created by LayoutFactory class.
 *
 * @author David Kaspar
 */
public interface Layout {

    /**
     * Resolve bounds of widget children based in their preferred locations and bounds.
     * @param widget the widget
     */
    public void layout (Widget widget);

    /**
     * Resolve whether a widget requires justification after whole scene layout.
     * @param widget the widget
     * @return true if requires justification
     */
    public boolean requiresJustification (Widget widget);

    /**
     * Justify bounds of widget children based on a widget client area.
     * @param widget the widget
     */
    public void justify (Widget widget);

}
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