defaultgridmodel.java

java 开发的围棋打谱程序 可供大家做参考

package org.nebula.cwt.grid;

import org.nebula.cwt.grid.GridModel;

/**
 * DefaultGridModel
 * 
 * Description:
 * 
 * @author xuan
 * 
 */
public class DefaultGridModel implements GridModel {
	protected Object blocks[][];

	protected int cols, rows;

	/**
	 * Listeners.
	 */
	protected GridModelListener listener = null;

	public DefaultGridModel(int c, int r) {
		cols = c;
		rows = r;

		blocks = new Object[cols][rows];
		for (int i = 0; i < cols; i++)
			for (int j = 0; j < rows; j++) {
				blocks[i][j] = null;
			}
	}

	/**
	 * AbstractGridModel subclasses must call this method <b>after</b> one or
	 * more chessmen removed.
	 * 
	 * @see EventListenerList
	 */
	public void fireDataChanged() {
		// Logger.debug("DefaultGridModel::fireDataChanged");
		if (listener != null) {
			// Logger.debug("calling fireDataChanged");
			listener.gridDataChanged();
		}
	}

	/**
	 * Add a listener to the Grid that's notified each time a change to the data
	 * model occurs.
	 * 
	 * @param l
	 *            the GridDataListener
	 */
	public void setGridModelListener(GridModelListener l) {
		listener = l;
	}

	public int getColumns() {
		return cols;
	}

	public int getRows() {
		return rows;
	}

	public Object getObject(int x, int y) {
		return blocks[x][y];
	}

	public void setObject(int x, int y, Object obj) {
		blocks[x][y] = obj;
		fireDataChanged();
	}

	public boolean isEmpty(int x, int y) {
		if (blocks[x][y] == null)
			return true;
		else
			return false;
	}

	public void reset(int c, int r) {
		cols = c;
		rows = r;

		blocks = new Object[cols][rows];
		for (int i = 0; i < cols; i++)
			for (int j = 0; j < rows; j++) {
				blocks[i][j] = null;
			}
	}

}