/*******************************************************************************
* Copyright (c) 2012 Original authors and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Original authors and others - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.examples.examples._101_Data;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.nebula.widgets.nattable.NatTable;
import org.eclipse.nebula.widgets.nattable.data.IColumnPropertyAccessor;
import org.eclipse.nebula.widgets.nattable.data.IDataProvider;
import org.eclipse.nebula.widgets.nattable.data.ListDataProvider;
import org.eclipse.nebula.widgets.nattable.data.ReflectiveColumnPropertyAccessor;
import org.eclipse.nebula.widgets.nattable.examples.AbstractNatExample;
import org.eclipse.nebula.widgets.nattable.examples.runner.StandaloneNatExampleRunner;
import org.eclipse.nebula.widgets.nattable.grid.layer.DefaultGridLayer;
import org.eclipse.nebula.widgets.nattable.layer.ILayer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
public class Derived_or_computed_column_data extends AbstractNatExample {
public static void main(String[] args) throws Exception {
StandaloneNatExampleRunner.run(new Derived_or_computed_column_data());
}
@Override
public String getDescription() {
return "This example shows how to add a derived fullName column which is computed by concatenating the firstName and lastName column values";
}
public Control createExampleControl(Composite parent) {
List<Person> myList = new ArrayList<Person>();
myList.add(new Person("Homer", "Simpson", "Sargeant", 1234567890L));
myList.add(new Person("Waylon", "Smithers", "Admiral", 6666666666L));
myList.add(new Person("Bart", "Smithers", "General", 9125798342L));
myList.add(new Person("Nelson", "Muntz", "Private", 0000000001L));
myList.add(new Person("John", "Frink", "Lieutenant", 3141592654L));
String[] propertyNames = { "firstName", "lastName", "rank",
"serialNumber" };
final IColumnPropertyAccessor<Person> columnPropertyAccessor = new ReflectiveColumnPropertyAccessor<Person>(
propertyNames);
// Add derived 'fullName' column
final IColumnPropertyAccessor<Person> derivedColumnPropertyAccessor = new IColumnPropertyAccessor<Person>() {
public Object getDataValue(Person rowObject, int columnIndex) {
if (columnIndex < columnPropertyAccessor.getColumnCount()) {
return columnPropertyAccessor.getDataValue(rowObject,
columnIndex);
} else if (columnIndex == columnPropertyAccessor
.getColumnCount()) {
return columnPropertyAccessor.getDataValue(rowObject, 0)
+ " "
+ columnPropertyAccessor.getDataValue(rowObject, 1);
} else {
return null;
}
}
public void setDataValue(Person rowObject, int columnIndex,
Object newValue) {
columnPropertyAccessor.setDataValue(rowObject, columnIndex,
newValue);
}
public int getColumnCount() {
return columnPropertyAccessor.getColumnCount() + 1;
}
public String getColumnProperty(int columnIndex) {
if (columnIndex < columnPropertyAccessor.getColumnCount()) {
return columnPropertyAccessor
.getColumnProperty(columnIndex);
} else if (columnIndex == columnPropertyAccessor
.getColumnCount()) {
return "fullName";
} else {
return null;
}
}
public int getColumnIndex(String propertyName) {
if ("fullName".equals(propertyName)) {
return columnPropertyAccessor.getColumnCount() + 1;
} else {
return columnPropertyAccessor.getColumnIndex(propertyName);
}
}
};
final IDataProvider listDataProvider = new ListDataProvider<Person>(
myList, derivedColumnPropertyAccessor);
// Column header data provider includes derived properties
IDataProvider columnHeaderDataProvider = new IDataProvider() {
public Object getDataValue(int columnIndex, int rowIndex) {
return derivedColumnPropertyAccessor
.getColumnProperty(columnIndex);
}
public void setDataValue(int columnIndex, int rowIndex,
Object newValue) {
// noop
}
public int getColumnCount() {
return derivedColumnPropertyAccessor.getColumnCount();
}
public int getRowCount() {
return 1;
}
};
ILayer layer = new DefaultGridLayer(listDataProvider,
columnHeaderDataProvider);
return new NatTable(parent, layer);
}
public class Person {
private String firstName;
private String lastName;
private String rank;
private long serialNumber;
public Person(String firstName, String lastName, String rank,
long serialNumber) {
this.firstName = firstName;
this.lastName = lastName;
this.rank = rank;
this.serialNumber = serialNumber;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public String getRank() {
return rank;
}
public long getSerialNumber() {
return serialNumber;
}
}
}