BooleanSection.java

package org.csstudio.sds.ui.internal.editor.newproperties;

import org.csstudio.sds.internal.model.BooleanProperty;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;

/**
 * Section for {@link BooleanProperty}.
 * 
 * @author Sven Wende
 * 
 */
public class BooleanSection extends AbstractBaseSection<BooleanProperty> {

	private Button checkbox;
	private SelectionListener _selectionListener;

	public BooleanSection(String propertyId) {
		super(propertyId);
	}

	/**
	 *{@inheritDoc}
	 */
	@Override
	protected void doCreateControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
		GridLayoutFactory.swtDefaults().numColumns(1).applyTo(parent);
		
		// .. create the checkbox
		checkbox = getWidgetFactory().createButton(parent, null, SWT.CHECK);
		GridDataFactory.fillDefaults().applyTo(checkbox);
		
		// .. listen to changes
		_selectionListener = new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				applyPropertyChange(checkbox.getSelection());
			}
		};
		
		checkbox.addSelectionListener(_selectionListener);
	}

	@Override
	protected void doRefreshControls(BooleanProperty widgetProperty) {
		if (widgetProperty != null && !checkbox.isDisposed()) {
			boolean selected = widgetProperty.getPropertyValue();
			checkbox.removeSelectionListener(_selectionListener);
			checkbox.setSelection(selected);
			checkbox.addSelectionListener(_selectionListener);
		}
	}

}