Need help from Mr.francois lascelles about image in the fly.
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Posted By:   zruslan_Zakaria
Posted On:   Sunday, March 2, 2003 08:14 PM

Hello , I need help urgently to present my final project of "How to generate real time image (on the fly)to WAP . I am beginner in java language also leaked of knowledged in java. i used a sevlet tomcat 4.1 as a server and openwave 5.1 as a phone simulator. i have to display the real time image at the simulator but i donn't have any idea to do it. This is my program to send image from sevlet to openwave:- import java.io.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class LApple extends HttpServlet { public void doGet(HttpServletRequest r   More>>

Hello ,

I need help urgently to present my final project of "How to generate real time image (on the fly)to WAP . I am beginner in java language also leaked of knowledged in java.

i used a sevlet tomcat 4.1 as a server and openwave 5.1 as a phone simulator. i have to display the real time image at the simulator but i donn't have any idea to do it.

This is my program to send image from sevlet to openwave:-


import java.io.*;

import java.util.*;

import javax.servlet.*;

import javax.servlet.http.*;


public class LApple extends HttpServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doPost( req, res );

}

public void doPost (HttpServletRequest req, HttpServletResponse res)

throws ServletException, IOException {


res.addHeader("Cache-Control","no-cache, must-

revalidate");

res.addHeader("Pragma","no-cache");

res.setContentType("text/vnd.wap.wml");

char ch ='"';

String ch2="'";

PrintWriter pw = res.getWriter();

pw.println(" ");

pw.println(" ");

pw.println("

");

pw.println("Apple for you!");

pw.println(" ");

pw.println(" Is it your Apple? ");

pw.println(" ");

pw.println(" ");

pw.println(" ");

pw.println("

"+new Date().toString()+"

");

pw.println("

hould be reloaded every 10 seconds from http://127.0.0.1.

");

pw.println("

");

pw.println(" ");

pw.println(" ");

}

}

Your program is helpful to convert image to wbmp format but i don't know how to use to get the display in my openwave simulator.

My email is ru5lan@yahoo.com
Somebody who can help me it really save my life.


This program is wore by Mr francois lascelles's

import java.io.*;

import java.lang.*;

import java.awt.*;

import java.awt.Graphics.*;

import java.awt.Graphics2D;

import java.awt.image.*;

import java.awt.geom.*;

import java.util.*;

import javax.swing.*;

public class WBmpRenderer {

// the bitmap

protected BufferedImage iBitmap;

// the context to draw into

protected Graphics2D iGraphicsContext;

// bitmap size

protected byte iWidth;

protected byte iHeight;

// construct with the size of the bitmap

public WBmpRenderer(byte aWidth, byte aHeight)

throws Exception {

iWidth = aWidth;

iHeight = aHeight;

iBitmap = new BufferedImage(

iWidth, iHeight, BufferedImage.TYPE_BYTE_BINARY);

if (iBitmap == null) {

throw new Exception(

"cannot create BufferedImage object");

}

iGraphicsContext = iBitmap.createGraphics();

if (iGraphicsContext == null) {

throw new Exception(

"cannot create Graphics2D object");

}

}

// retreive graphic context to draw stuff into bitmap

public Graphics2D graphicsContext() {

return iGraphicsContext;

}

//

// This send the image to the output in WBMP

// (WIRELESS BITMAP)

//

// WBMP FORMAT:

// BYTE 1 AND BYTE 2 = 0

// BYTE 3 width in pixels

// BYTE 4 height in pixels

// the rest is the pixels (one bit per pixel)

//

public boolean sendToOutput(OutputStream anOut) {

try {

byte byteInOutput = 0;

// write twice "0"

anOut.write(byteInOutput);

anOut.write(byteInOutput);

// output the height and the width

anOut.write(iWidth);

anOut.write(iHeight);

// output the bytes containing the graph

DataBuffer locImageDataBuffer =

iBitmap.getData().getDataBuffer();

int nbElementsInLocImage =

locImageDataBuffer.getSize();

// one by one

for (int count = 0;

count < nbElementsInLocImage;

++count) {

anOut.write((byte)

locImageDataBuffer.getElem(count));

}

} catch (Exception e) {

return false;

}

return true;

}


/

/ My friend try to continue by wrote this code but

don't know how to display output stream

public static void main(String[] args) throws Exception

{

WBmpRenderer wbmp = new WBmpRenderer((byte)50, (byte)50);

Graphics2D wbmpg2d = wbmp.graphicsContext();

Ellipse2D e = new Ellipse2D.Double(10,10,20,20);

wbmpg2d.setPaint(new Color(200, 200, 200));

wbmpg2d.fill(e);

wbmpg2d.draw(e);

}
}
.

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