drawable.java

手机邮箱撒的方式方式方式的

//#condition MUJMAIL_HTML
package mujmail.html;

/*
MujMail - Simple mail client for J2ME
Copyright (C) 2006 Nguyen Son Tung <[e-mail]>
Copyright (C) 2008 David Hauzar <[e-mail]>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

import javax.microedition.lcdui.Graphics;

/**
 * <p>Marks class as drawable - we can draw it.</p>
 * <p>
 * This could be confusing for example for br tag, but think about it a little.
 * br tag also needs to be drawn, at least coordinates have to be moved
 * to the next line.
 * </p>
 * 
 * @author Betlista
 */
public interface Drawable {

	/**
	 * <p>Enables to draw object that implements this interface.</p>
	 * <p>
	 * The returned position should be the position where the next element
	 * (correctly Drawable) can be drawn. We are using positioning to the upper
	 * left corner of drawn rectangle.
	 * </p>
	 * 
	 * @param g graphics reference to be used for drawing
	 * @param x horizontal coordinate
	 * @param y vertical coordinate
	 * @return new position where to start drawing of next {@link Drawable}
	 */
	public Point draw( final Graphics g, int x, int y );

	/**
	 * Implements crate design pattern simply to enable returning
	 * the new position in {@link Drawable#draw(Graphics, int, int)} method.
	 * 
	 * @author Betlista
	 */
	public class Point {
	      // these field are public, because usage of this class is really
	      //   simple, there are no complicated methods for handling the values
	      //   so it's without any problem
	    /** Represents horizontal coordinate. */
		public int x;
        /** Represents vertical coordinate. */
		public int y;

		/**
		 * Constructor to build complete (in meaning of set fields) instance.
		 * 
		 * @param x horizontal coordinate (see {@link #x})
		 * @param y vertical coordinate (see {@link #y})
		 */
		public Point( final int x, final int y ) {
			this.x = x;
			this.y = y;
		}
	}
}