Add paging support for a local collection of models (Ext GWT) : Table « GWT « Java

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Java » GWT » TableScreenshots 
Add paging support for a local collection of models (Ext GWT)
Add paging support for a local collection of models (Ext GWT)
 

/*
 * Ext GWT - Ext for GWT
 * Copyright(c) 2007-2009, Ext JS, LLC.
 * licensing@extjs.com
 
 * http://extjs.com/license
 */
 
 
package com.google.gwt.sample.hello.client;

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

import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.data.BaseModel;
import com.extjs.gxt.ui.client.data.BasePagingLoader;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.data.PagingLoadResult;
import com.extjs.gxt.ui.client.data.PagingLoader;
import com.extjs.gxt.ui.client.data.PagingModelMemoryProxy;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.grid.ColumnConfig;
import com.extjs.gxt.ui.client.widget.grid.ColumnData;
import com.extjs.gxt.ui.client.widget.grid.ColumnModel;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GridCellRenderer;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.extjs.gxt.ui.client.widget.layout.FlowLayout;
import com.extjs.gxt.ui.client.widget.table.NumberCellRenderer;
import com.extjs.gxt.ui.client.widget.toolbar.PagingToolBar;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.i18n.client.NumberFormat;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.RootPanel;

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

  @Override
  protected void onRender(Element parent, int index) {
    super.onRender(parent, index);

    setLayout(new FlowLayout(10));

    // add paging support for a local collection of models
    PagingModelMemoryProxy proxy = new PagingModelMemoryProxy(getStocks());

    // loader
    PagingLoader<PagingLoadResult<ModelData>> loader = new BasePagingLoader<PagingLoadResult<ModelData>>(proxy);
    loader.setRemoteSort(true);

    ListStore<Stock> store = new ListStore<Stock>(loader);

    final PagingToolBar toolBar = new PagingToolBar(10);
    toolBar.bind(loader);

    loader.load(010);

    final NumberFormat currency = NumberFormat.getCurrencyFormat();
    final NumberFormat number = NumberFormat.getFormat("0.00");
    final NumberCellRenderer<Grid<Stock>> numberRenderer = new NumberCellRenderer<Grid<Stock>>(currency);

    GridCellRenderer<Stock> change = new GridCellRenderer<Stock>() {
      public String render(Stock model, String property, ColumnData config, int rowIndex, int colIndex,
          ListStore<Stock> store, Grid<Stock> grid) {
        double val = (Doublemodel.get(property);
        String style = val < "red" "green";
        return "<span style='color:" + style + "'>" + number.format(val"</span>";
      }
    };

    GridCellRenderer<Stock> gridNumber = new GridCellRenderer<Stock>() {
      public String render(Stock model, String property, ColumnData config, int rowIndex, int colIndex,
          ListStore<Stock> store, Grid<Stock> grid) {
        return numberRenderer.render(null, property, model.get(property));
      }
    };

    List<ColumnConfig> configs = new ArrayList<ColumnConfig>();

    ColumnConfig column = new ColumnConfig();
    column.setId("name");
    column.setHeader("Company");
    column.setWidth(200);
    configs.add(column);

    column = new ColumnConfig();
    column.setId("symbol");
    column.setHeader("Symbol");
    column.setWidth(100);
    configs.add(column);

    column = new ColumnConfig();
    column.setId("last");
    column.setHeader("Last");
    column.setAlignment(HorizontalAlignment.RIGHT);
    column.setWidth(75);
    column.setRenderer(gridNumber);
    configs.add(column);

    column = new ColumnConfig("change""Change"100);
    column.setAlignment(HorizontalAlignment.RIGHT);
    column.setRenderer(change);
    configs.add(column);

    column = new ColumnConfig("date""Last Updated"100);
    column.setAlignment(HorizontalAlignment.RIGHT);
    column.setDateTimeFormat(DateTimeFormat.getShortDateFormat());
    configs.add(column);

    ColumnModel cm = new ColumnModel(configs);

    ContentPanel cp = new ContentPanel();
    cp.setFrame(true);
    cp.setHeading("Local Paging Grid");
    //cp.setIcon(Resources.ICONS.table());
    cp.setButtonAlign(HorizontalAlignment.CENTER);
    cp.setLayout(new FitLayout());
    cp.setBottomComponent(toolBar);
    cp.setSize(600200);

    Grid<Stock> grid = new Grid<Stock>(store, cm);
    grid.setBorders(true);
    grid.setAutoExpandColumn("name");

    cp.add(grid);

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

    stocks.add(new Stock("Apple Inc.""AAPL"125.64123.43));
    stocks.add(new Stock("Cisco Systems, Inc.""CSCO"25.8426.3));
    stocks.add(new Stock("Google Inc.""GOOG"516.2512.6));
    stocks.add(new Stock("Intel Corporation""INTC"21.3621.53));
    stocks.add(new Stock("Level 3 Communications, Inc.""LVLT"5.555.54));
    stocks.add(new Stock("Microsoft Corporation""MSFT"29.5629.72));
    stocks.add(new Stock("Nokia Corporation (ADR)""NOK"27.8327.93));
    stocks.add(new Stock("Oracle Corporation""ORCL"18.7318.98));
    stocks.add(new Stock("Starbucks Corporation""SBUX"27.3327.36));
    stocks.add(new Stock("Yahoo! Inc.""YHOO"26.9727.29));
    stocks.add(new Stock("Applied Materials, Inc.""AMAT"18.418.66));
    stocks.add(new Stock("Comcast Corporation""CMCSA"25.926.4));
    stocks.add(new Stock("Sirius Satellite""SIRI"2.772.74));

    stocks.add(new Stock("Tellabs, Inc.""TLAB"10.6410.75));
    stocks.add(new Stock("eBay Inc.""EBAY"30.4331.21));
    stocks.add(new Stock("Broadcom Corporation""BRCM"30.8830.48));
    stocks.add(new Stock("CMGI Inc.""CMGI"2.142.13));
    stocks.add(new Stock("Amgen, Inc.""AMGN"56.2257.02));
    stocks.add(new Stock("Limelight Networks""LLNW"2322.11));
    stocks.add(new Stock("Amazon.com, Inc.""AMZN"72.4772.23));

    stocks.add(new Stock("E TRADE Financial Corporation""ETFC"24.3224.58));
    stocks.add(new Stock("AVANIR Pharmaceuticals""AVNR"3.73.52));
    stocks.add(new Stock("Gemstar-TV Guide, Inc.""GMST"4.414.55));
    stocks.add(new Stock("Akamai Technologies, Inc.""AKAM"43.0845.32));
    stocks.add(new Stock("Motorola, Inc.""MOT"17.7417.69));
    stocks.add(new Stock("Advanced Micro Devices, Inc.""AMD"13.7713.98));
    stocks.add(new Stock("General Electric Company""GE"36.836.91));
    stocks.add(new Stock("Texas Instruments Incorporated""TXN"35.0235.7));
    stocks.add(new Stock("Qwest Communications""Q"9.910.03));
    stocks.add(new Stock("Tyco International Ltd.""TYC"33.4833.26));
    stocks.add(new Stock("Pfizer Inc.""PFE"26.2126.19));
    stocks.add(new Stock("Time Warner Inc.""TWX"20.320.45));
    stocks.add(new Stock("Sprint Nextel Corporation""S"21.8521.76));
    stocks.add(new Stock("Bank of America Corporation""BAC"49.9249.73));
    stocks.add(new Stock("Taiwan Semiconductor""TSM"10.410.52));
    stocks.add(new Stock("AT&T Inc.""T"39.739.66));
    stocks.add(new Stock("United States Steel Corporation""X"115.81114.62));
    stocks.add(new Stock("Exxon Mobil Corporation""XOM"81.7781.86));
    stocks.add(new Stock("Valero Energy Corporation""VLO"72.4672.6));
    stocks.add(new Stock("Micron Technology, Inc.""MU"12.0212.27));
    stocks.add(new Stock("Verizon Communications Inc.""VZ"42.542.61));
    stocks.add(new Stock("Avaya Inc.""AV"16.9616.96));
    stocks.add(new Stock("The Home Depot, Inc.""HD"37.6637.79));

    stocks.add(new Stock("First Data Corporation""FDC"32.732.65));
    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 (Dateget("date");
  }

  public String getName() {
    return (Stringget("name");
  }

  public String getSymbol() {
    return (Stringget("symbol");
  }

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

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

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

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

  public String toString() {
    return getName();
  }

}

   
  
Ext-GWT.zip( 4,297 k)
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