gridbagpanel.java

aglet的部分源码

package com.ibm.aglets.tahiti;

/*
 * @(#)GridBagPanel.java
 * 
 * IBM Confidential-Restricted
 * 
 * OCO Source Materials
 * 
 * 03L7246 (c) Copyright IBM Corp. 1996, 1998
 * 
 * The source code for this program is not published or otherwise
 * divested of its trade secrets, irrespective of what has been
 * deposited with the U.S. Copyright Office.
 */

import java.awt.*;

public class GridBagPanel extends Panel {
	public static final int RELATIVE = GridBagConstraints.RELATIVE;
	public static final int REMAINDER = GridBagConstraints.REMAINDER;

	public static final int NONE = GridBagConstraints.NONE;
	public static final int BOTH = GridBagConstraints.BOTH;
	public static final int HORIZONTAL = GridBagConstraints.HORIZONTAL;
	public static final int VERTICAL = GridBagConstraints.VERTICAL;

	public static final int CENTER = GridBagConstraints.CENTER;
	public static final int NORTH = GridBagConstraints.NORTH;
	public static final int NORTHEAST = GridBagConstraints.NORTHEAST;
	public static final int EAST = GridBagConstraints.EAST;
	public static final int SOUTHEAST = GridBagConstraints.SOUTHEAST;
	public static final int SOUTH = GridBagConstraints.SOUTH;
	public static final int SOUTHWEST = GridBagConstraints.SOUTHWEST;
	public static final int WEST = GridBagConstraints.WEST;
	public static final int NORTHWEST = GridBagConstraints.NORTHWEST;

	private GridBagLayout _grid = new GridBagLayout();
	private GridBagConstraints _cns = new GridBagConstraints();

	public GridBagPanel() {
		setLayout(_grid);
	}
	public Component add(Component c) {
		return add(c, _cns);
	}
	public Component add(Component c, int width) {
		_cns.gridwidth = width;
		return add(c);
	}
	public Component add(Component c, int width, double weightx) {
		_cns.gridwidth = width;
		_cns.weightx = weightx;
		return add(c);
	}
	public Component add(Component c, int anchor, int fill) {
		_cns.anchor = anchor;
		_cns.fill = fill;
		return add(c);
	}
	public Component add(Component c, int anchor, int fill, int width) {
		_cns.gridwidth = width;
		return add(c, anchor, fill);
	}
	protected Component add(Component c, GridBagConstraints cns) {
		_grid.setConstraints(c, cns);
		return super.add(c);
	}
	public void addLabeled(String label, Component c) {
		_cns.gridwidth = 1;
		_cns.weightx = 0.1;
		add(new Label(label));

		_cns.weightx = 1.0;
		_cns.gridwidth = GridBagConstraints.REMAINDER;
		add(c);
	}
	public void setConstraints(GridBagConstraints cns) {
		_cns = cns;
	}
}