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package org.fox.image;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.lcdui.Image;
/**
* ÀàÃû£ºImageHandler.java ±àдÈÕÆÚ: 2007-8-17
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Demo:
*
Bug:
*
* ³ÌÐò±ä¸üÈÕÆÚ £º
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*
* @author wuhua rrq12345@163.com
*/
public class ImageHandler implements Runnable {
private HttpConnection c = null;
private InputStream is = null;
private ByteArrayOutputStream baos = new ByteArrayOutputStream();
private Image image = null;
private String iamgeUrl;
private ImageCanvas imageCanvas;
private ImagePart imagePart;
private ImageHandler(String imageUrl,ImagePart imagePart,ImageCanvas imageCanvas){
this.iamgeUrl = imageUrl;
this.imagePart = (ImagePart)imagePart;
this.imageCanvas = imageCanvas;
new Thread(this).start();
}
public static ImageHandler getIamgeHandler(String imageUrl,
ImagePart imagePart,ImageCanvas imageCanvas){
return new ImageHandler(imageUrl,imagePart,imageCanvas);
}
/* »ñµÃÍøÂçͼƬ */
public Image handlerIamge() throws Exception{
byte[] imageData = null;
try {
c = (HttpConnection) Connector.open(iamgeUrl);
is = c.openInputStream();
int ch = 0;
while ((ch = is.read()) != -1) {
baos.write(ch); // ¶ÁÈ¡ÍøÂçͼƬ
}
} catch (IOException ioe) {
throw new IOException("Connect Error");
}
imageData = baos.toByteArray(); // °ÑͼƬת»»³É×Ö½Ú
try {
image = Image.createImage(imageData, 0, imageData.length);
} catch (NullPointerException e) {
throw new NullPointerException("NullPointerException");
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("IllegalArgumentException");
}
return image;
}
public void run() {
try {
imagePart.setImage(handlerIamge());
imageCanvas.repaint();
} catch (Exception e) {
e.printStackTrace();
}
}
}