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/*******************************************************************************
* Copyright (c) 2006, 2013 Tom Schindl 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:
* Tom Schindl - initial API and implementation
* Dinko Ivanov - bug 164365
* Hendrik Still <hendrik.still@gammas.de> - bug 417676
*******************************************************************************/
package org.eclipse.jface.snippets.viewers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ComboBoxCellEditor;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
/**
* This snippet represents usage of the ComboBoxCell-Editor
*
* @author Tom Schindl <tom.schindl@bestsolution.at>
*
*/
public class Snippet027ComboBoxCellEditors {
private class MyCellModifier implements ICellModifier {
private TableViewer<MyModel,List<MyModel>> viewer;
public MyCellModifier(TableViewer<MyModel,List<MyModel>> viewer) {
this.viewer = viewer;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ICellModifier#canModify(java.lang.Object,
* java.lang.String)
*/
public boolean canModify(Object element, String property) {
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ICellModifier#getValue(java.lang.Object,
* java.lang.String)
*/
public Object getValue(Object element, String property) {
// We need to calculate back to the index
return new Integer(((MyModel) element).counter / 10);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.viewers.ICellModifier#modify(java.lang.Object,
* java.lang.String, java.lang.Object)
*/
public void modify(Object element, String property, Object value) {
TableItem item = (TableItem) element;
// We get the index and need to calculate the real value
((MyModel) item.getData()).counter = ((Integer) value).intValue() * 10;
viewer.update((MyModel)item.getData(), null);
}
}
private class MyContentProvider implements IStructuredContentProvider<MyModel,List<MyModel>> {
public MyModel[] getElements(List<MyModel> inputElement) {
MyModel[] myModels = new MyModel[inputElement.size()];
return inputElement.toArray(myModels);
}
public void dispose() {
}
public void inputChanged(Viewer<? extends List<MyModel>> viewer, List<MyModel> oldInput, List<MyModel> newInput) {
}
}
public class MyModel {
public int counter;
public MyModel(int counter) {
this.counter = counter;
}
public String toString() {
return "Item " + this.counter;
}
}
public Snippet027ComboBoxCellEditors(Shell shell) {
final Table table = new Table(shell, SWT.BORDER | SWT.FULL_SELECTION);
final TableViewer<MyModel,List<MyModel>> v = new TableViewer<MyModel,List<MyModel>>(table);
final MyCellModifier modifier = new MyCellModifier(v);
TableColumn column = new TableColumn(table, SWT.NONE);
column.setWidth(200);
v.setLabelProvider(new LabelProvider<MyModel>());
v.setContentProvider(new MyContentProvider());
v.setCellModifier(modifier);
v.setColumnProperties(new String[] { "column1" });
v.setCellEditors(new CellEditor[] { new ComboBoxCellEditor(
v.getTable(), new String[] { "Zero", "Ten", "Twenty", "Thirty",
"Fourty", "Fifty", "Sixty", "Seventy", "Eighty",
"Ninety" }) });
List<MyModel> model = createModel();
v.setInput(model);
v.getTable().setLinesVisible(true);
}
private List<MyModel> createModel() {
List<MyModel> elements = new ArrayList<MyModel>(10);
for( int i = 0; i < 10; i++ ) {
elements.add(i,new MyModel(i));
}
return elements;
}
/**
* @param args
*/
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
new Snippet027ComboBoxCellEditors(shell);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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