qticker.java

j2me 高级UI

/**
 * 作者：cat 戚永城
 * 时间：2008-3-1
 * QQ：415898635
 * E-Mail：	[e-mail]
 * 			[e-mail]
 * 
 * */
package org.qui.conmponent;

import javax.microedition.lcdui.Graphics;

import org.qui.container.QFrame;
import org.qui.manager.QItem;

public class QTicker extends QItem implements Runnable {

	private String text = "";

	private QFrame frame = null;

	public QTicker(String text, QFrame frame) {
		super(0, 0, frame.frm_Width, 20);
		super.height = font.getHeight();
		this.frame = frame;
		this.text = text;
		text_Recycle = text;
		new Thread(this).start();
	}

	public void setText(String text) {
		this.text = text;
		text_Recycle = text;
	}

	public String getText() {
		return text;
	}

	public String text_Recycle = "";

	private Graphics gTemp = null;

	private int step = 0;

	public void paint(Graphics g) {
		int[] clip=new int[4];
		clip[0] = g.getClipX();
		clip[1] = g.getClipY();
		clip[2] = g.getClipWidth();
		clip[3] = g.getClipHeight();
		g.setClip(x + ui.offx, y + ui.offy, width+1 ,height+1);
		if (gTemp == null) {
			gTemp = g;
		}
		g.setColor(br, bg, bb);
		g.fillRect(x + ui.offx, y + ui.offy, width, height);
		g.setColor(fr, fg, fb);
		g.drawString(text_Recycle, x + ui.offx, y + ui.offy, Graphics.LEFT | Graphics.TOP);
		g.setClip(clip[0],clip[1],clip[2],clip[3]);
	}

	public void run() {
		int cycle_num = 0, cycleLength = text.length();
		while (true) {
			cycle_num = (cycle_num + cycleLength + 1) % cycleLength;
			text_Recycle = text.substring(cycle_num)
					+ text.substring(0, cycle_num);
			if (gTemp != null) {
				step = (step + 3) % 2;
				frame.repaint(x+ui.offx,y+ui.offy,width,height);
			}
			try {
				Thread.sleep(500);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
}