| /***************************************************************************** |
| * Copyright (c) 2016 Dirk Fauth. |
| * |
| * 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: |
| * Dirk Fauth <dirk.fauth@googlemail.com> - Initial API and implementation |
| * |
| *****************************************************************************/ |
| package org.eclipse.nebula.widgets.nattable.examples.e4; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import javax.annotation.PostConstruct; |
| import javax.annotation.PreDestroy; |
| |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.nebula.widgets.nattable.examples.INatExample; |
| import org.eclipse.nebula.widgets.nattable.examples.NatTableExamples; |
| import org.eclipse.nebula.widgets.nattable.util.GUIHelper; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.browser.Browser; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Group; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Link; |
| import org.eclipse.swt.widgets.Shell; |
| |
| public class NatExamplePart { |
| |
| INatExample example; |
| Control exampleControl; |
| |
| @PostConstruct |
| public void postConstruct(Composite parent, MPart part) { |
| GridLayout layout = new GridLayout(); |
| layout.marginWidth = 0; |
| layout.marginHeight = 0; |
| parent.setLayout(layout); |
| |
| example = (INatExample) part.getTransientData().get("example"); |
| exampleControl = example.createExampleControl(parent); |
| |
| GridDataFactory.fillDefaults().grab(true, true).applyTo(exampleControl); |
| |
| // Description |
| final String description = example.getDescription(); |
| if (description != null && description.length() > 0) { |
| final Group descriptionGroup = new Group(parent, SWT.NONE); |
| descriptionGroup.setText("Description"); |
| descriptionGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| descriptionGroup.setLayout(new FillLayout()); |
| |
| final Label descriptionLabel = new Label(descriptionGroup, SWT.WRAP); |
| descriptionLabel.setText(description); |
| } |
| |
| // Source Link |
| Link link = new Link(parent, SWT.NONE); |
| link.setText("<a href=\"" + part.getTransientData().get("examplePath") + "\">View source</a>"); |
| |
| final SelectionAdapter linkSelectionListener = new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent event) { |
| String path = event.text; |
| if (path.startsWith("/" + INatExample.TUTORIAL_EXAMPLES_PREFIX)) { |
| path = path.replace("/" + INatExample.TUTORIAL_EXAMPLES_PREFIX, INatExample.BASE_PATH + "/"); |
| } else if (path.startsWith("/" + INatExample.CLASSIC_EXAMPLES_PREFIX)) { |
| path = path.replace("/" + INatExample.CLASSIC_EXAMPLES_PREFIX, INatExample.CLASSIC_BASE_PATH + "/"); |
| } |
| if (!path.startsWith("/")) { |
| path = "/" + path; |
| } |
| String source = getResourceAsString("/src" + path + ".java"); |
| if (source != null) { |
| viewSource(part.getLabel(), source); |
| } |
| } |
| }; |
| link.addSelectionListener(linkSelectionListener); |
| |
| example.onStart(); |
| } |
| |
| private String getResourceAsString(String resource) { |
| InputStream inStream = NatTableExamples.class.getResourceAsStream(resource); |
| |
| if (inStream != null) { |
| StringBuilder builder = new StringBuilder(); |
| try { |
| int i = -1; |
| while ((i = inStream.read()) != -1) { |
| builder.append((char) i); |
| } |
| |
| return builder.toString(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } else { |
| MessageDialog.openError(null, "Error", "null stream for resource " + resource); |
| } |
| |
| return null; |
| } |
| |
| private void viewSource(String title, String source) { |
| Shell shell = new Shell(Display.getDefault()); |
| shell.setText(title); |
| shell.setLayout(new FillLayout()); |
| |
| Browser text = new Browser(shell, SWT.MULTI); |
| text.setBackground(GUIHelper.COLOR_WHITE); |
| text.setText("<pre>" + source + "</pre>"); |
| |
| shell.open(); |
| } |
| |
| @PreDestroy |
| public void dispose() { |
| example.onStop(); |
| |
| if (exampleControl != null && !exampleControl.isDisposed()) { |
| exampleControl.dispose(); |
| } |
| } |
| } |