multimediaviewer.java

Messaging- MIDP的是一个彩信客户端

/*
 *  JVending - J2ME MMS Client
 *  Copyright (C) 2004  Shane Isbell
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.jvending.messaging.client;

import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.TextField;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;

import javax.microedition.midlet.MIDlet;

import org.jvending.messaging.*;


/**
 * @author Shane Isbell
 * @version 1.0.0a
 * @created 04/03/27
 */

public class MultimediaViewer implements CommandListener {

    private Command next = new Command("Next", Command.SCREEN, 1);

    private Command send = new Command("Send", Command.SCREEN, 1);

    private Command info = new Command("Info", Command.SCREEN, 1);

    private Command back = new Command("Back", Command.SCREEN, 1);

    private Form[] mimeForm;

    private int head;

    private int size;

    private Display display;

    private MultimediaMessage mediaMessage;

    private MIDlet controller;

    public MultimediaViewer(MIDlet controller, MultimediaMessage mediaMessage) {
        this.controller = controller;
        this.mediaMessage = mediaMessage;
    }

    public void commandAction(Command command, Displayable displayable) {
        if(command == next) {
            head = ++head % size;
            display.setCurrent(mimeForm[head]);
        } else if(command == send) {
            //send MMS
        } else if(command == info) {
            Form f = new Form("Client Info");
            f.append("This product includes software developed by JVending (http://www.jvending.org/).");
            f.addCommand(back);
            f.setCommandListener(this);
            display.setCurrent(f);
        } else if(command == back) {
            display.setCurrent(mimeForm[0]);
        } 
    }

    public void displayWaitPage() {
        Form form = new Form("Wait"); 
        form.append("Please wait for the MMS Notification to Arrive");
        display = Display.getDisplay(controller);
        display.setCurrent(form);
    }

    int num = 0;
    public void displayView() {
        MimeMessage mimeMessage = mediaMessage.getMimeMessage();
        if(mimeMessage != null) {
            size = (int) mimeMessage.getNumberOfEntries() + 1;
            mimeForm = new Form[size];
            MultipartEntry[] multipartEntry = mimeMessage.getEntries();
         

        int contentType = 0;
        byte[] data = null;
        Image image = null;
        for (int i = 1; i < size; i++) {
            mimeForm[i] = new Form("Content");
            contentType = (int) multipartEntry[i - 1].getContentType();
            if(contentType == ContentType.TEXT_PLAIN) {
                mimeForm[i].append(new String(multipartEntry[i - 1].getData())); 
            } else {

                data = multipartEntry[i - 1].getData();
                try {
                    image = Image.createImage(data, 0, data.length);
                    mimeForm[i].append(image);
                } catch(IllegalArgumentException e) { mimeForm[i].append("Could Not Recognize Content Type");}//skips unrec. types
                

            }
            mimeForm[i].append(ContentType.intToString(contentType));
            mimeForm[i].addCommand(next);
            mimeForm[i].addCommand(send);
            mimeForm[i].setCommandListener(this);
        }
        } else {
            size = 1;
            mimeForm = new Form[size];
        }

        TextField[] tf = fillInHeaders(mediaMessage);
        mimeForm[0] = new Form("MMS Header Info", tf);
        mimeForm[0].addCommand(next);
        mimeForm[0].addCommand(send);
        mimeForm[0].addCommand(info);
        mimeForm[0].setCommandListener(this);

        display = Display.getDisplay(controller);
        display.setCurrent(mimeForm[0]);

    }

    //FIX ME: Need a more dynamic way of doing this. Not all of these fields are required
    private TextField[] fillInHeaders(MultimediaMessage message) {
        TextField[] tf = {
            new TextField("Message Id", message.getHeader("X_MMS_MESSAGE_TYPE"), 50, TextField.ANY),
            new TextField("Transaction Id", message.getHeader("X_MMS_TRANSACTION_ID"), 50, TextField.ANY),
         //   new TextField("Version", message.getHeader("X_MMS_MMS_VERSION"), 50, TextField.ANY),
            new TextField("From", message.getHeader("FROM"), 30, TextField.ANY),
            new TextField("To", message.getHeader("TO"), 30, TextField.ANY),
      //      new TextField("Size", String.valueOf(size), 30, TextField.ANY),
      //      new TextField("CC", message.getHeader("CC"), 30, TextField.ANY),
      //      new TextField("BCC", message.getHeader("BCC"), 30, TextField.ANY),
      //      new TextField("Date", message.getHeader("DATE"), 20, TextField.ANY),
            new TextField("Subject", message.getHeader("SUBJECT"), 50, TextField.ANY),   
      //      new TextField("Class", message.getHeader("X_MMS_MESSAGE_CLASS"), 20, TextField.ANY),     
            new TextField("Priority", message.getHeader("X_MMS_PRIORITY"), 20, TextField.ANY)            
        };
        return tf;
    }

}