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MASON is a fast discrete-event multiagent simulation library core in Java, designed to be the foundation for large custom-purpose Java simulations, and also to provide more than enough functionality for many lightweight simulation needs. MASON contains both a model library and an optional suite of visualization tools in 2D and 3D.

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/*
  Copyright 2006 by Sean Luke and George Mason University
  Licensed under the Academic Free License version 3.0
  See the file "LICENSE" for more information
*/

package sim.util.gui;
import javax.swing.*;
import java.awt.*;

/** AbstractScrollable is a JPanel with basic implementation of the Scrollable interface,
    making possible simple anonymous subclasses. */
    
public abstract class AbstractScrollable extends JPanel implements Scrollable
    {
    public Dimension getPreferredScrollableViewportSize()
        {
        return getPreferredSize();
        }
        
    public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction)
        {
        // twentieth a page
        return (visibleRect.height / 20);
        }
        
    public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction)
        {
        // half of a page
        return (visibleRect.height/2);
        }
        
    public boolean getScrollableTracksViewportWidth()
        {
        return false;
        }
        
    public boolean getScrollableTracksViewportHeight()
        {
        return false;
        }
    }