Using GroupingStore to load grouped grid data (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.data.BaseModel;
import com.extjs.gxt.ui.client.store.GroupingStore;
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.ColumnModel;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GridGroupRenderer;
import com.extjs.gxt.ui.client.widget.grid.GroupColumnData;
import com.extjs.gxt.ui.client.widget.grid.GroupingView;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.extjs.gxt.ui.client.widget.layout.FlowLayout;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.i18n.client.DateTimeFormat;
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 GroupingGridExample());
}
}
class GroupingGridExample extends LayoutContainer {
@Override
protected void onRender(Element parent, int index) {
super.onRender(parent, index);
setLayout(new FlowLayout(10));
GroupingStore<Stock> store = new GroupingStore<Stock>();
store.add(getCompanies());
store.groupBy("industry");
ColumnConfig company = new ColumnConfig("name", "Company", 60);
ColumnConfig price = new ColumnConfig("open", "Price", 20);
ColumnConfig change = new ColumnConfig("change", "Change", 20);
ColumnConfig industry = new ColumnConfig("industry", "Industry", 20);
ColumnConfig last = new ColumnConfig("date", "Last Updated", 20);
last.setDateTimeFormat(DateTimeFormat.getFormat("MM/dd/y"));
List<ColumnConfig> config = new ArrayList<ColumnConfig>();
config.add(company);
config.add(price);
config.add(change);
config.add(industry);
config.add(last);
final ColumnModel cm = new ColumnModel(config);
GroupingView view = new GroupingView();
view.setShowGroupedColumn(false);
view.setForceFit(true);
view.setGroupRenderer(new GridGroupRenderer() {
public String render(GroupColumnData data) {
String f = cm.getColumnById(data.field).getHeader();
String l = data.models.size() == 1 ? "Item" : "Items";
return f + ": " + data.group + " (" + data.models.size() + " " + l + ")";
}
});
Grid<Stock> grid = new Grid<Stock>(store, cm);
grid.setView(view);
grid.setBorders(true);
ContentPanel panel = new ContentPanel();
panel.setHeading("Grouping Example");
// panel.setIcon(Resources.ICONS.table());
panel.setCollapsible(true);
panel.setFrame(true);
panel.setSize(700, 450);
panel.setLayout(new FitLayout());
panel.add(grid);
add(panel);
}
public static List<Stock> getCompanies() {
DateTimeFormat f = DateTimeFormat.getFormat("M/d h:mma");
List<Stock> stocks = new ArrayList<Stock>();
stocks.add(new Stock("3m Co", 71.72, 0.02, 0.03, f.parse("4/2 12:00am"),
"Manufacturing"));
stocks.add(new Stock("Alcoa Inc", 29.01, 0.42, 1.47, f.parse("4/1 12:00am"),
"Manufacturing"));
stocks.add(new Stock("Altria Group Inc", 83.81, 0.28, 0.34, f.parse("4/3 12:00am"),
"Manufacturing"));
stocks.add(new Stock("American Express Company", 52.55, 0.01, 0.02,
f.parse("4/8 12:00am"), "Finance"));
stocks.add(new Stock("American International Group, Inc.", 64.13, 0.31, 0.49,
f.parse("4/1 12:00am"), "Services"));
stocks.add(new Stock("AT&T Inc.", 31.61, -0.48, -1.54, f.parse("4/8 12:00am"),
"Services"));
stocks.add(new Stock("Boeing Co.", 75.43, 0.53, 0.71, f.parse("4/8 12:00am"),
"Manufacturing"));
stocks.add(new Stock("Caterpillar Inc.", 67.27, 0.92, 1.39, f.parse("4/1 12:00am"),
"Services"));
stocks.add(new Stock("Citigroup, Inc.", 49.37, 0.02, 0.04, f.parse("4/4 12:00am"),
"Finance"));
stocks.add(new Stock("E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28,
f.parse("4/1 12:00am"), "Manufacturing"));
stocks.add(new Stock("Exxon Mobil Corp", 68.1, -0.43, -0.64, f.parse("4/3 12:00am"),
"Manufacturing"));
stocks.add(new Stock("General Electric Company", 34.14, -0.08, -0.23,
f.parse("4/3 12:00am"), "Manufacturing"));
stocks.add(new Stock("General Motors Corporation", 30.27, 1.09, 3.74,
f.parse("4/3 12:00am"), "Automotive"));
stocks.add(new Stock("Hewlett-Packard Co.", 36.53, -0.03, -0.08,
f.parse("4/3 12:00am"), "Computer"));
stocks.add(new Stock("Honeywell Intl Inc", 38.77, 0.05, 0.13, f.parse("4/3 12:00am"),
"Manufacturing"));
stocks.add(new Stock("Intel Corporation", 19.88, 0.31, 1.58, f.parse("4/2 12:00am"),
"Computer"));
stocks.add(new Stock("International Business Machines", 81.41, 0.44, 0.54,
f.parse("4/1 12:00am"), "Computer"));
stocks.add(new Stock("Johnson & Johnson", 64.72, 0.06, 0.09, f.parse("4/2 12:00am"),
"Medical"));
stocks.add(new Stock("JP Morgan & Chase & Co", 45.73, 0.07, 0.15,
f.parse("4/2 12:00am"), "Finance"));
stocks.add(new Stock("McDonald\"s Corporation", 36.76, 0.86, 2.40,
f.parse("4/2 12:00am"), "Food"));
stocks.add(new Stock("Merck & Co., Inc.", 40.96, 0.41, 1.01, f.parse("4/2 12:00am"),
"Medical"));
stocks.add(new Stock("Microsoft Corporation", 25.84, 0.14, 0.54,
f.parse("4/2 12:00am"), "Computer"));
stocks.add(new Stock("Pfizer Inc", 27.96, 0.4, 1.45, f.parse("4/8 12:00am"),
"Services"));
stocks.add(new Stock("The Coca-Cola Company", 45.07, 0.26, 0.58,
f.parse("4/1 12:00am"), "Food"));
stocks.add(new Stock("The Home Depot, Inc.", 34.64, 0.35, 1.02,
f.parse("4/8 12:00am"), "Retail"));
stocks.add(new Stock("The Procter & Gamble Company", 61.91, 0.01, 0.02,
f.parse("4/1 12:00am"), "Manufacturing"));
stocks.add(new Stock("United Technologies Corporation", 63.26, 0.55, 0.88,
f.parse("4/1 12:00am"), "Computer"));
stocks.add(new Stock("Verizon Communications", 35.57, 0.39, 1.11,
f.parse("4/3 12:00am"), "Services"));
stocks.add(new Stock("Wal-Mart Stores, Inc.", 45.45, 0.73, 1.63,
f.parse("4/3 12:00am"), "Retail"));
stocks.add(new Stock("Walt Disney Company (The) (Holding Company)", 29.89, 0.24,
0.81, f.parse("4/1 12:00am"), "Services"));
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();
}
}
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