/*
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.examples.cellview;
import com.google.gwt.cell.client.DateCell;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.cellview.client.Column;
import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy;
import com.google.gwt.user.cellview.client.TextColumn;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.view.client.SelectionChangeEvent;
import com.google.gwt.view.client.SingleSelectionModel;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
/**
* Example of {@link CellTable}. This example shows a table containing contact
* information.
*/
public class CellTableExample implements EntryPoint {
/**
* A simple data type that represents a contact.
*/
private static class Contact {
private final String address;
private final Date birthday;
private final String name;
public Contact(String name, Date birthday, String address) {
this.name = name;
this.birthday = birthday;
this.address = address;
}
}
/**
* The list of data to display.
*/
private static final List<Contact> CONTACTS = Arrays.asList(
new Contact("John", new Date(80, 4, 12), "123 Fourth Avenue"),
new Contact("Joe", new Date(85, 2, 22), "22 Lance Ln"),
new Contact("George", new Date(46, 6, 6), "1600 Pennsylvania Avenue"));
public void onModuleLoad() {
// Create a CellTable.
CellTable<Contact> table = new CellTable<Contact>();
table.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
// Add a text column to show the name.
TextColumn<Contact> nameColumn = new TextColumn<Contact>() {
@Override
public String getValue(Contact object) {
return object.name;
}
};
table.addColumn(nameColumn, "Name");
// Add a date column to show the birthday.
DateCell dateCell = new DateCell();
Column<Contact, Date> dateColumn = new Column<Contact, Date>(dateCell) {
@Override
public Date getValue(Contact object) {
return object.birthday;
}
};
table.addColumn(dateColumn, "Birthday");
// Add a text column to show the address.
TextColumn<Contact> addressColumn = new TextColumn<Contact>() {
@Override
public String getValue(Contact object) {
return object.address;
}
};
table.addColumn(addressColumn, "Address");
// Add a selection model to handle user selection.
final SingleSelectionModel<Contact> selectionModel = new SingleSelectionModel<Contact>();
table.setSelectionModel(selectionModel);
selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
public void onSelectionChange(SelectionChangeEvent event) {
Contact selected = selectionModel.getSelectedObject();
if (selected != null) {
Window.alert("You selected: " + selected.name);
}
}
});
// Set the total row count. This isn't strictly necessary, but it affects
// paging calculations, so its good habit to keep the row count up to date.
table.setRowCount(CONTACTS.size(), true);
// Push the data into the widget.
table.setRowData(0, CONTACTS);
// Add it to the root panel.
RootPanel.get().add(table);
}
}