/*******************************************************************************
* Copyright (c) 2006, 2015 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
* Jeanderson Candido <http://jeandersonbc.github.io> - Bug 414565
* Lars Vogel <Lars.Vogel@vogella.com> - Bug 475361
*******************************************************************************/
package org.eclipse.jface.snippets.viewers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TableItem;
/**
* Example how to place native controls into a viewer with the new JFace-API
* because has the potential to eat up all your handles you should think about
* alternate approaches e.g. taking a screenshot of the control
*
* @author Tom Schindl <tom.schindl@bestsolution.at>
*
*/
public class Snippet054NativeControlsInViewers {
public class MyModel {
public int counter;
public MyModel(int counter) {
this.counter = counter;
}
@Override
public String toString() {
return "Item " + this.counter;
}
}
public Snippet054NativeControlsInViewers(Shell shell) {
final TableViewer viewer = new TableViewer(shell, SWT.BORDER
| SWT.FULL_SELECTION);
viewer.setContentProvider(ArrayContentProvider.getInstance());
viewer.getTable().setLayoutData(
new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
TableViewerColumn column = createColumnFor(viewer, "Column 1");
column.setLabelProvider(new ColumnLabelProvider() {
@Override
public String getText(Object element) {
return element.toString();
}
});
column = createColumnFor(viewer, "Column 2");
column.setLabelProvider(createCellLabelProvider());
viewer.setInput(createModel(10));
viewer.getTable().setLinesVisible(true);
viewer.getTable().setHeaderVisible(true);
Button b = createButtonFor(shell, "Modify Input");
b.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
viewer.setInput(createModel((int) (Math.random() * 10)));
}
});
b = createButtonFor(shell, "Refresh");
b.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
viewer.refresh();
}
});
}
private CellLabelProvider createCellLabelProvider() {
return new CellLabelProvider() {
@Override
public void update(ViewerCell cell) {
final TableItem item = (TableItem) cell.getItem();
DisposeListener listener = new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
if (item.getData("EDITOR") != null) {
TableEditor editor = (TableEditor) item
.getData("EDITOR");
editor.getEditor().dispose();
editor.dispose();
}
}
};
if (item.getData("EDITOR") != null) {
TableEditor editor = (TableEditor) item.getData("EDITOR");
editor.getEditor().dispose();
editor.dispose();
}
if (item.getData("DISPOSELISTNER") != null) {
item.removeDisposeListener((DisposeListener) item
.getData("DISPOSELISTNER"));
}
TableEditor editor = new TableEditor(item.getParent());
item.setData("EDITOR", editor);
Composite comp = new Composite(item.getParent(), SWT.NONE);
comp.setBackground(item.getParent().getBackground());
comp.setBackgroundMode(SWT.INHERIT_DEFAULT);
RowLayout l = new RowLayout();
l.marginHeight = 0;
l.marginWidth = 0;
l.marginTop = 0;
l.marginBottom = 0;
comp.setLayout(l);
new Button(comp, SWT.RADIO);
new Button(comp, SWT.RADIO);
new Button(comp, SWT.RADIO);
editor.grabHorizontal = true;
editor.setEditor(comp, item, 1);
item.addDisposeListener(listener);
item.setData("DISPOSELISTNER", listener);
}
};
}
private Button createButtonFor(Shell shell, String label) {
Button b = new Button(shell, SWT.PUSH);
b.setText(label);
b.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
return b;
}
private TableViewerColumn createColumnFor(final TableViewer viewer,
String columnLabel) {
TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
column.getColumn().setWidth(200);
column.getColumn().setText(columnLabel);
return column;
}
private List<MyModel> createModel(int amount) {
List<MyModel> elements = new ArrayList<>();
for (int i = 0; i < amount; i++) {
elements.add(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 GridLayout(2, true));
new Snippet054NativeControlsInViewers(shell);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}