multieditlistpanel.java

aglet的部分源码

package com.ibm.aglets.tahiti;

/*
 * @(#)MultiEditListPanel.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.util.Vector;
import java.util.Enumeration;
import java.awt.List;
import java.awt.Label;
import java.awt.Button;
import java.awt.Panel;
import java.awt.TextField;
import java.awt.Frame;

// - import java.awt.ItemSelectable;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

// - import java.awt.event.ItemListener;
// - import java.awt.event.ItemEvent;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

class MultiEditListPanel extends GridBagPanel implements ActionListener {
	private static final String LABEL_ADD = "add";
	private static final String LABEL_REMOVE = "remove";
	private static final String LABEL_MOVE_TO_TOP = "move to top";
	private static final String LABEL_MOVE_TO_LAST = "move to last";

	private MultiListEditable _mlist = null;
	GridBagLayout _layout = new GridBagLayout();

	MultiEditListPanel(int rows, double[] weight) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, weight);
		makePanel();
	}
	MultiEditListPanel(int rows, double[] weight, String[] labels) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, weight, labels);
		makePanel();
	}
	MultiEditListPanel(int rows, int[] width) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, width);
		makePanel();
	}
	MultiEditListPanel(int rows, int[] width, double[] weight) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, width, weight);
		makePanel();
	}
	MultiEditListPanel(int rows, int[] width, double[] weight, 
					   String[] labels) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, width, weight, labels);
		makePanel();
	}
	MultiEditListPanel(int rows, int[] width, String[] labels) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, width, labels);
		makePanel();
	}
	MultiEditListPanel(int rows, String[] labels) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, labels);
		makePanel();
	}
	MultiEditListPanel(int rows, int cols) {
		setLayout(_layout);
		_mlist = new MultiListEditable(rows, cols);
		makePanel();
	}
	public void actionPerformed(ActionEvent ev) {
		String cmd = ev.getActionCommand();

		if (LABEL_ADD.equals(cmd)) {
			_mlist.addItemsInTextFields();
		} else if (LABEL_REMOVE.equals(cmd)) {
			_mlist.delSelectedItems();
		} else if (LABEL_MOVE_TO_TOP.equals(cmd)) {
			_mlist.moveToTop();
		} else if (LABEL_MOVE_TO_LAST.equals(cmd)) {
			_mlist.moveToLast();
		} 
	}
	protected void addButton(String label, GridBagLayout layout, 
							 GridBagConstraints cnt) {
		Button button = new Button(label);

		layout.setConstraints(button, cnt);
		add(button);
		button.setActionCommand(label);
		button.addActionListener(this);
	}
	public void addButtons() {
		addButtons(true, true, true, true);
	}
	public void addButtons(boolean add, boolean remove, boolean top, 
						   boolean last) {
		GridBagConstraints cnt = new GridBagConstraints();

		cnt.gridx = GridBagConstraints.RELATIVE;
		cnt.gridy = GridBagConstraints.RELATIVE;

		// cnt.gridy = 1;
		cnt.gridwidth = GridBagConstraints.RELATIVE;
		cnt.gridheight = 1;
		cnt.weightx = 0.0;
		cnt.weighty = 0.0;
		cnt.fill = GridBagConstraints.NONE;
		cnt.anchor = GridBagConstraints.WEST;
		cnt.ipadx = 2;
		cnt.ipady = 2;

		Button button = null;

		if (add) {
			addButton(LABEL_ADD, _layout, cnt);
		} 
		if (remove) {
			addButton(LABEL_REMOVE, _layout, cnt);
		} 
		if (top) {
			addButton(LABEL_MOVE_TO_TOP, _layout, cnt);
		} 
		if (last) {
			addButton(LABEL_MOVE_TO_LAST, _layout, cnt);
		} 
	}
	public void addEditFields() {}
	public static void main(String arg[]) {
		Frame frame = new Frame("test");

		frame.setSize(1000, 200);
		final int cols = 4;
		double[] weight = new double[cols];

		weight[0] = 0.0;
		weight[1] = 0.0;
		weight[2] = 0.0;
		weight[3] = 0.0;

		int[] width = new int[cols];

		width[0] = 5;
		width[1] = 5;
		width[2] = 10;
		width[3] = 5;

		String[] items = new String[cols];

		items[0] = "item 1";
		items[1] = "ITEM 2";
		items[2] = "item 3";
		items[3] = "item 4";

		// MultiEditListPanel mpanel = new MultiEditListPanel(3, weight, items);
		// MultiEditListPanel mpanel = new MultiEditListPanel(3, items);
		MultiEditListPanel mpanel = new MultiEditListPanel(3, width, items);

		frame.add(mpanel);

		// frame.pack();
		frame.show();
	}
	private void makePanel() {
		GridBagConstraints cnt = new GridBagConstraints();

		cnt.gridwidth = GridBagConstraints.REMAINDER;
		_layout.setConstraints(_mlist, cnt);
		add(_mlist);
		addButtons(true, true, true, true);
	}
}