import java.awt.*;

/**
 * Extension of GridBagConstraints with a simplified constructor
 * 
 * @author Nobo Komagata
 * @version 5/29/03
 */
public class GridBagC extends GridBagConstraints
{
    // to set a position relative (next) to the previous value
    public static final int RELATIVE = GridBagConstraints.RELATIVE;
    
    // to set a span that fills in the remaining positions
    public static final int REMAINDER = GridBagConstraints.REMAINDER;
    
    /**
     * Constructor for objects of class GridBagC
     * 
     * @param       x pos, y pos, x span, y span [0-indexed]
     * @return      a new instance
     * 
     * // Example
     * // Y\X   0   1   2
     * // 0     00  10  20
     * // 1     01+11   21
     * setLayout(new GridBagLayout());
     * add(new Label("00"), new GridBagC(0, 0, 1, 1));
     * add(new Label("10"), new GridBagC(1, 0, 1, 1));
     * add(new Label("20"), new GridBagC(2, 0, 1, 1));
     * add(new Label("01+11"), new GridBagC(0, 1, 2, 1));
     * add(new Label("21"), new GridBagC(2, 1, 1, 1));
     */
    public GridBagC(int gridx, int gridy, int gridwidth, int gridheight)
    {
        this.gridx = gridx;
        this.gridy = gridy;
        this.gridwidth = gridwidth;
        this.gridheight = gridheight;
        this.weightx = 1.0;
        this.weighty = 1.0;
        this.anchor = GridBagConstraints.CENTER;
        this.fill = GridBagConstraints.BOTH;
        this.insets = new Insets(0, 0, 0, 5);  // can be reset by "setInsets"
        this.ipadx = 0;
        this.ipady = 0;
    }

    /**
     * Manually set insets (margins)
     * 
     * @param       all arguments of the Insets constructor
     * @return      a new instance
     */
    public GridBagC setInsets(int top, int left, int bottom, int right)
    {
        this.insets = new Insets(top, left, bottom, right);
        return this;
    }
}