/* * @(#)GUIImageSender.java	1.4 04/01/30 * * Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved. * PROPRIETARY/CONFIDENTIAL * Use is subject to license terms */package example.obex.demo;import java.util.Vector;import javax.microedition.lcdui.Alert;import javax.microedition.lcdui.Command;import javax.microedition.lcdui.CommandListener;import javax.microedition.lcdui.Display;import javax.microedition.lcdui.Displayable;import javax.microedition.lcdui.Form;import javax.microedition.lcdui.Gauge;import javax.microedition.lcdui.List;/** * @version 1.4 */final class GUIImageSender implements CommandListener {    /** Shows if debug prints should be done. */    private static final boolean DEBUG = false;    /** DEBUG only: keeps the class name for debug. */    private static final String cn = "GUIImageSender";    /** Keeps a reference to a parent MIDlet. */    private ObexDemoMIDlet parent;    /** Soft button for stopping download and returning to the mane screen. */    private Command stopCommand = new Command("Stop", Command.BACK, 1);    /** Soft button for returning to the mane screen of demo. */    private Command backCommand = new Command("Back", Command.STOP, 1);    /** Soft button for launching an image sending. */    private Command sendCommand = new Command("Send", Command.ITEM, 1);    /** Container of images file names */    private Vector imageNames = null;    /** List of images titles to select a sending image */    private List imageList = null;    /** Form to show current state of seding a pictire */    private Form senderForm = new Form("Send Image");    /** Gauge to indicate progress of downloading process */    private Gauge sendingItem = new Gauge("", false, 256, 0);    /** Reference to Obex sender part */    private ObexImageSender obexSender = null;    /** Constructor initialize image list and sender form */    GUIImageSender(ObexDemoMIDlet parent) {        this.parent = parent;        obexSender = new ObexImageSender(this);        setupImageList();        imageList.addCommand(sendCommand);        imageList.addCommand(backCommand);        imageList.setCommandListener(this);        senderForm.append(sendingItem);        senderForm.addCommand(stopCommand);        senderForm.setCommandListener(this);        showImageList();    }    /**     * Responds to commands issued on "client or server" form.     *     * @param c command object source of action     * @param d screen object containing actioned item     */    public void commandAction(Command c, Displayable d) {        if (c == backCommand) {            parent.show();        } else if (c == stopCommand) {            obexSender.stop();            showImageList();        } else if (c == sendCommand) {            sendImage();        } else if (c == List.SELECT_COMMAND) {            sendImage();        } else if (c == Alert.DISMISS_COMMAND) {            showImageList();        }    }    /**     * Shows progress of image uploading     */    void showProgress(String label, int maxValue) {        sendingItem.setLabel(label);        sendingItem.setValue(0);        sendingItem.setMaxValue(maxValue);        Display.getDisplay(parent).setCurrent(senderForm);    }    /**     * Update progress of image uploading     */    void updateProgress(int value) {        sendingItem.setValue(value);    }    /**     * Shows list with image names to select one  for sending to receiver     */    void showImageList() {        Display.getDisplay(parent).setCurrent(imageList);    }    /**     * Shows allert with error message     */    void errorMessage() {        Alert alert = new Alert("Error", "Can't read the image", null, null);        alert.setTimeout(5000);        alert.setCommandListener(this);        Display.getDisplay(parent).setCurrent(alert, imageList);    }    /**     * Shows allert with "not ready" message     */    void notReadyMessage() {        Alert alert = new Alert("Warning",                "Receiver isn't ready" + " to download image", null, null);        alert.setTimeout(5000);        alert.setCommandListener(this);        Display.getDisplay(parent).setCurrent(alert, imageList);    }    /**     * Shows allert with "stop" message     */    void stopMessage() {        Alert alert = new Alert("Warning",                "Receiver terminated" + " image loading", null, null);        alert.setTimeout(5000);        alert.setCommandListener(this);        Display.getDisplay(parent).setCurrent(alert, imageList);    }    /** Stops Uploading process */    void stop() {        obexSender.stop();    }    /** Starts sending process */    private void sendImage() {        int imageIndex = imageList.getSelectedIndex();        String imageName = (String) imageNames.elementAt(imageIndex);        obexSender.setImageName(imageName);        (new Thread(obexSender)).start();    }    /**     * Check the attributes in the descriptor that identify     * images and titles and initialize the lists of imageNames     * and imageList.     * <P>     * The attributes are named "ImageTitle-n" and "ImageImage-n".     * The value "n" must start at "1" and increment by 1.     */    private void setupImageList() {        imageNames = new Vector();        imageList = new List("Select Image to send", List.IMPLICIT);        imageList.addCommand(backCommand);        imageList.setCommandListener(this);        for (int n = 1; n < 100; n++) {            String nthImage = "ImageName-" + n;            String image = parent.getAppProperty(nthImage);            if (image == null || image.length() == 0) {                break;            }            String nthTitle = "ImageTitle-" + n;            String title = parent.getAppProperty(nthTitle);            if (title == null || title.length() == 0) {                title = image;            }            imageNames.addElement(image);            imageList.append(title, null);        }    }}