Basic Drag and Drop (DND) (Ext GWT) : Drag Drop « GWT « Java

Basic Drag and Drop (DND) (Ext GWT)

Basic Drag and Drop (DND) (Ext GWT)
 * Ext GWT - Ext for GWT
 * Copyright(c) 2007-2009, Ext JS, LLC.

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.extjs.gxt.ui.client.core.El;
import com.extjs.gxt.ui.client.dnd.DragSource;
import com.extjs.gxt.ui.client.dnd.DropTarget;
import com.extjs.gxt.ui.client.event.ButtonEvent;
import com.extjs.gxt.ui.client.event.DNDEvent;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.widget.HorizontalPanel;
import com.extjs.gxt.ui.client.widget.Html;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.button.Button;
import com.extjs.gxt.ui.client.widget.layout.FlowData;

public class Hello implements EntryPoint {
  public void onModuleLoad() {
    RootPanel.get().add(new BasicDNDExample());
class BasicDNDExample extends LayoutContainer {

  protected void onRender(Element parent, int index) {
    super.onRender(parent, index);
    HorizontalPanel hp = new HorizontalPanel();

    final LayoutContainer container = new LayoutContainer();
    container.setSize(200, 200);

    DropTarget target = new DropTarget(container) {
      protected void onDragDrop(DNDEvent event) {
        Html html = event.getData();

    final LayoutContainer sourceContainer = new LayoutContainer();


    Button reset = new Button("Reset");
    reset.addSelectionListener(new SelectionListener<ButtonEvent>() {
      public void componentSelected(ButtonEvent ce) {

    add(reset, new FlowData(10));

  private void addSources(LayoutContainer container) {
    for (int i = 0; i < 5; i++) {
      final Html html = new Html("Drag Me " + i);
      html.setStyleAttribute("padding", "5px");
      html.setStyleAttribute("border", "1px solid red");
      html.setStyleAttribute("cursor", "default");
      container.add(html, new FlowData(3));

      DragSource source = new DragSource(html) {
        protected void onDragStart(DNDEvent event) {
          // by default drag is allowed
      // group is optional


  public static List<Stock> getStocks() {
    List<Stock> stocks = new ArrayList<Stock>();

    stocks.add(new Stock("Apple Inc.", "AAPL", 125.64, 123.43));
    stocks.add(new Stock("Cisco Systems, Inc.", "CSCO", 25.84, 26.3));
    stocks.add(new Stock("Google Inc.", "GOOG", 516.2, 512.6));
    stocks.add(new Stock("Intel Corporation", "INTC", 21.36, 21.53));
    stocks.add(new Stock("Level 3 Communications, Inc.", "LVLT", 5.55, 5.54));
    stocks.add(new Stock("Microsoft Corporation", "MSFT", 29.56, 29.72));
    stocks.add(new Stock("Nokia Corporation (ADR)", "NOK", 27.83, 27.93));
    stocks.add(new Stock("Oracle Corporation", "ORCL", 18.73, 18.98));
    stocks.add(new Stock("Starbucks Corporation", "SBUX", 27.33, 27.36));
    stocks.add(new Stock("Yahoo! Inc.", "YHOO", 26.97, 27.29));
    stocks.add(new Stock("Applied Materials, Inc.", "AMAT", 18.4, 18.66));
    stocks.add(new Stock("Comcast Corporation", "CMCSA", 25.9, 26.4));
    stocks.add(new Stock("Sirius Satellite", "SIRI", 2.77, 2.74));

    stocks.add(new Stock("Tellabs, Inc.", "TLAB", 10.64, 10.75));
    stocks.add(new Stock("eBay Inc.", "EBAY", 30.43, 31.21));
    stocks.add(new Stock("Broadcom Corporation", "BRCM", 30.88, 30.48));
    stocks.add(new Stock("CMGI Inc.", "CMGI", 2.14, 2.13));
    stocks.add(new Stock("Amgen, Inc.", "AMGN", 56.22, 57.02));
    stocks.add(new Stock("Limelight Networks", "LLNW", 23, 22.11));
    stocks.add(new Stock(", Inc.", "AMZN", 72.47, 72.23));

    stocks.add(new Stock("E TRADE Financial Corporation", "ETFC", 24.32, 24.58));
    stocks.add(new Stock("AVANIR Pharmaceuticals", "AVNR", 3.7, 3.52));
    stocks.add(new Stock("Gemstar-TV Guide, Inc.", "GMST", 4.41, 4.55));
    stocks.add(new Stock("Akamai Technologies, Inc.", "AKAM", 43.08, 45.32));
    stocks.add(new Stock("Motorola, Inc.", "MOT", 17.74, 17.69));
    stocks.add(new Stock("Advanced Micro Devices, Inc.", "AMD", 13.77, 13.98));
    stocks.add(new Stock("General Electric Company", "GE", 36.8, 36.91));
    stocks.add(new Stock("Texas Instruments Incorporated", "TXN", 35.02, 35.7));
    stocks.add(new Stock("Qwest Communications", "Q", 9.9, 10.03));
    stocks.add(new Stock("Tyco International Ltd.", "TYC", 33.48, 33.26));
    stocks.add(new Stock("Pfizer Inc.", "PFE", 26.21, 26.19));
    stocks.add(new Stock("Time Warner Inc.", "TWX", 20.3, 20.45));
    stocks.add(new Stock("Sprint Nextel Corporation", "S", 21.85, 21.76));
    stocks.add(new Stock("Bank of America Corporation", "BAC", 49.92, 49.73));
    stocks.add(new Stock("Taiwan Semiconductor", "TSM", 10.4, 10.52));
    stocks.add(new Stock("AT&T Inc.", "T", 39.7, 39.66));
    stocks.add(new Stock("United States Steel Corporation", "X", 115.81, 114.62));
    stocks.add(new Stock("Exxon Mobil Corporation", "XOM", 81.77, 81.86));
    stocks.add(new Stock("Valero Energy Corporation", "VLO", 72.46, 72.6));
    stocks.add(new Stock("Micron Technology, Inc.", "MU", 12.02, 12.27));
    stocks.add(new Stock("Verizon Communications Inc.", "VZ", 42.5, 42.61));
    stocks.add(new Stock("Avaya Inc.", "AV", 16.96, 16.96));
    stocks.add(new Stock("The Home Depot, Inc.", "HD", 37.66, 37.79));

    stocks.add(new Stock("First Data Corporation", "FDC", 32.7, 32.65));
    return stocks;

class Stock extends BaseModel {

  public Stock() {

  public Stock(String name, String symbol, double open, double last) {
    set("name", name);
    set("symbol", symbol);
    set("open", open);
    set("last", last);
    set("date", new Date());
    set("change", last - open);

  public Stock(String name, double open, double change, double pctChange, Date date, String industry) {
    set("name", name);
    set("open", open);
    set("change", change);
    set("percentChange", pctChange);
    set("date", date);
    set("industry", industry);

  public String getIndustry() {
    return get("industry");

  public void setIndustry(String industry) {
    set("industry", industry);

  public Date getLastTrans() {
    return (Date) get("date");

  public String getName() {
    return (String) get("name");

  public String getSymbol() {
    return (String) get("symbol");

  public double getOpen() {
    Double open = (Double) get("open");
    return open.doubleValue();

  public double getLast() {
    Double open = (Double) get("last");
    return open.doubleValue();

  public double getChange() {
    return getLast() - getOpen();

  public double getPercentChange() {
    return getChange() / getOpen();

  public String toString() {
    return getName();


  4,297 k)

Related examples in the same category

1.Click the buttons to move the draggable box above or below the other boxes (Smart GWT)Click the buttons to move the draggable box above or below the other boxes (Smart GWT)
2.Drag and drop interaction (Smart GWT)Drag and drop interaction (Smart GWT)
3.Drag the large cubes into the boxes to create new small cubes (Smart GWT)Drag the large cubes into the boxes to create new small cubes (Smart GWT)
4.Drag effect: Translucent, Shadow, Outline (Smart GWT)
5.Drag and move back and forth (Smart GWT)Drag and move back and forth (Smart GWT)
6.Drag and drop to move image (Smart GWT)Drag and drop to move image (Smart GWT)
7.Animation during drag and drop (Smart GWT)Animation during drag and drop (Smart GWT)
8.Click and drag to pan the image inside its frame. (Smart GWT)Click and drag to pan the image inside its frame. (Smart GWT)
9.Set drag types (Smart GWT)Set drag types (Smart GWT)
10.Draggable image (Smart GWT)Draggable image (Smart GWT)
11.Set resizable edge: from any side or from bottom or right (Smart GWT)Set resizable edge: from any side or from bottom or right (Smart GWT)
12.Drag Tracker Sample (Smart GWT)Drag Tracker Sample (Smart GWT)
13.Make ContentPanel draggable (Ext GWT)Make ContentPanel draggable (Ext GWT)
14.Make ContentPanel Resizable (Ext GWT)Make ContentPanel Resizable (Ext GWT)
15.Set container for dragging operation (Ext GWT)Set container for dragging operation (Ext GWT)
16.Set Draggable for the header (Ext GWT)Set Draggable for the header (Ext GWT)
17.GridStore data binding (Ext GWT)GridStore data binding (Ext GWT)