ui/org.eclipse.pde.runtime/src/org/eclipse/pde/internal/runtime/spy/sections/ActiveSelectionSection.java

/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation 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:
 *     Chris Aniszczyk <zx@us.ibm.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.pde.internal.runtime.spy.sections;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.pde.internal.runtime.PDERuntimeMessages;
import org.eclipse.pde.internal.runtime.spy.SpyFormToolkit;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.forms.widgets.ExpandableComposite;
import org.eclipse.ui.forms.widgets.FormText;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;
import org.eclipse.ui.forms.widgets.TableWrapData;
import org.eclipse.ui.handlers.HandlerUtil;

public class ActiveSelectionSection implements ISpySection {

	public void build(ScrolledForm form, SpyFormToolkit toolkit, ExecutionEvent event) {
		IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
		if (window == null) // if we don't have an active workbench, we don't have a valid selection to analyze
			return;

		// analyze the selection
		ISelection selection = HandlerUtil.getCurrentSelection(event);
		if (selection instanceof IStructuredSelection) {
			IStructuredSelection ss = (IStructuredSelection) selection;
			Object object = ss.getFirstElement();
			if (object != null) { // check for a valid class
				Class clazz = object.getClass();

				Section section = toolkit.createSection(form.getBody(), ExpandableComposite.TITLE_BAR);
				section.clientVerticalSpacing = 9;
				section.setText(PDERuntimeMessages.SpyDialog_activeSelection_title);
				FormText text = toolkit.createFormText(section, true);
				section.setClient(text);

				TableWrapData td = new TableWrapData();
				td.align = TableWrapData.FILL;
				td.grabHorizontal = true;
				section.setLayoutData(td);

				// time to analyze the selection
				StringBuffer buffer = new StringBuffer();
				buffer.append("<form>"); //$NON-NLS-1$
				buffer.append(toolkit.createClassSection(text, PDERuntimeMessages.SpyDialog_activeSelection_desc, new Class[] {clazz}));

				Class[] interfaces = clazz.getInterfaces();
				buffer.append(toolkit.createInterfaceSection(text, PDERuntimeMessages.SpyDialog_activeSelectionInterfaces_desc, interfaces));

				buffer.append("</form>"); //$NON-NLS-1$
				text.setText(buffer.toString(), true, false);
			}
		}
	}

}