logsscreen.java

一个基于J2ME技术的程序,使你可以远程控制装有服务端的PC.

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

package fildiv.jremcntl.client.ui;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;

import fildiv.jremcntl.client.core.AppConstants;
import fildiv.jremcntl.client.core.AppContext;
import fildiv.jremcntl.client.util.UIUtils;
import fildiv.jremcntl.common.core.Logger;

public class LogsScreen extends AbstractScreen implements CommandListener, 
	Logger {

	private final static Command CMD_BACK =
        new Command("Back", Command.BACK, 1);

	private final static Command CMD_CLEAR =
        new Command("Clear", Command.EXIT, 2);
	
	private Form lf;
	
	public LogsScreen(AppContext appCtx) {
		super(appCtx);
		
		lf = new Form(AppConstants.LOGS_SCREEN_CAPTION);
		
		lf.addCommand(CMD_BACK);
		lf.addCommand(CMD_CLEAR);
		
		lf.setCommandListener(this);
	}

	public void commandAction(Command c, Displayable d) {

		if (c == CMD_BACK)
			hide();
		else if (c == CMD_CLEAR)
			clear();
		
	}

	private void clear() {
		lf.deleteAll();
	}

	public void info(String s) {
		UIUtils.appendText(lf, UIUtils.formatLog(s));
	}

	public void warning(String s) {
		UIUtils.appendText(lf, UIUtils.formatLog(s) + "\n");	
	}

	public void error() {
		UIUtils.appendText(lf, "\n");
	}

	public void error(String s) {
		UIUtils.appendText(lf, "\n");		
	}

	public void error(Exception e) {
		UIUtils.appendText(lf, e.getMessage());
	}

	protected void onActivate() {
		getDisplay().setCurrent(lf);
	}

}