samplecanvas.java

来自「j2me游戏开发实例：手机动画编辑器的应用」· Java 代码 · 共 69 行

package com.j2medev.chapter5;

import javax.microedition.lcdui.*;
import java.io.*;

public class SampleCanvas extends Canvas implements Runnable {
    Display m_Display = null;
    SampleMIDlet m_MIDlet = null;
    Image srcImage = null;
    PieceSprite sample = null;
    
    public SampleCanvas(Display display) {
        this.m_Display = display;
        try {
            this.srcImage = Image.createImage("/sample.png");
        } catch(IOException ioe) {
            ioe.printStackTrace();
        }
        this.sample = new PieceSprite(this.srcImage, "/sample.bin",(short)100, true);
        this.sample.setAnimation(0, true);
        this.sample.setFrame((short)0);
        new Thread(this).start();
    }
    /**
     * paint
     *
     * @param graphics Graphics
     * @todo Implement this javax.microedition.lcdui.Canvas method
     */
    protected void paint(Graphics graphics) {
        graphics.setColor(0xFFFFFF);
        graphics.fillRect(0, 0, this.getWidth(), this.getHeight());
        this.sample.setNextFrame();
        this.sample.paint(graphics, this.getWidth()/2, this.getHeight()/2, 0);
    }
    /**
     * run
     */
    public void run() {
        while(true) {
            try {
                Thread.sleep(100);
                this.repaint();
            } catch(Exception e) {
                e.printStackTrace();
            }
        }
    }
    /**
     * start
     */
    public void start() {
        this.m_Display.setCurrent(this);
    }
    /**
     * keyPressed
     * @param keyCode int
     */
    public void keyPressed(int keyCode) {
        switch(keyCode) {
            case Canvas.KEY_NUM5 :
                break;
            default :
                break;
        }
    }
    
}