jremabstractaction.java

来自「JRemoteControl is a simple Java&#8482 dr」· Java 代码 · 共 73 行

/*
 * JRemCntl - Copyright (C) 2007 Filippo Di Vattimo <[e-mail]>
 * See COPYING
 */

package fildiv.jremcntl.server.gui.util.swing;

import java.awt.Component;
import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;

import fildiv.jremcntl.server.core.JRemEnv;
import fildiv.jremcntl.server.gui.core.CmdUI;

public abstract class JRemAbstractAction extends AbstractAction {
	
	private Component parent;
	private JRemEnv env;

	public JRemAbstractAction(JRemEnv env, Component parent) {
		this(env, parent, true);
	}

	public JRemAbstractAction(JRemEnv env, Component parent, 
			boolean updateUI) {
		
		this.env = env;
		this.parent = parent;
		
		if (updateUI)
			updateUI();
	}
		
	public void actionPerformed(ActionEvent e) {
		try {

			executeCmd();		
			
		} catch (Exception ex) {
			env.getLogger().error(ex);
			SwingUtils.showErrorMessage(env, 
					parent, "An exception has occurred.\n\n" + 
					ex.getMessage());
		}
	}

	public CmdUI updateUI() {
		
		CmdUI cmdUI = createCmdUI(false, true);
		updateUI(cmdUI);

		setEnabled(cmdUI.isEnabled());
		
		putValue(Action.SHORT_DESCRIPTION, cmdUI.getShortDesc());
		putValue(Action.LONG_DESCRIPTION, cmdUI.getLongDesc());
		if (cmdUI.getSmallIcon() != null)
			putValue(Action.SMALL_ICON, cmdUI.getSmallIcon());
		putValue("text", cmdUI.getShortDesc());
		putValue("visible", new Boolean(cmdUI.isVisible()));
		
		return cmdUI;
	}
	
	protected CmdUI createCmdUI(boolean enabled, boolean visible) {
		return new CmdUI(enabled, visible);
	}

	protected abstract void updateUI(CmdUI cmdUI);
	public abstract void executeCmd();
}