package org.litesoft.render;

public interface RenderableContainer extends RenderableRect
{
    /**
     * Get a Container's Decoration (or Overhead) Size in the 'X' dimension - the difference between the outside size and the inside size (what is available for child widgets)
     * <p/>
     * Note: this will NOT be called until the Container is reporting proper sizes!
     */
    public int getDecorationSizeX();

    /**
     * Get a Container's Decoration (or Overhead) Size in the 'Y' dimension - the difference between the outside size and the inside size (what is available for child widgets)
     * <p/>
     * Note: this will NOT be called until the Container is reporting proper sizes!
     */
    public int getDecorationSizeY();

    public static final RenderableContainer NULL_RC = new NullRenderableContainer();

    public static class NullRenderableContainer extends NullRenderableRect implements RenderableContainer
    {
        public int getDecorationSizeX()
        {
            return 0;
        }

        public int getDecorationSizeY()
        {
            return 0;
        }
    }
}