/*******************************************************************************
* Copyright (c) 2012 Original authors 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:
* Original authors and others - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.examples.runner;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.nebula.widgets.nattable.examples.INatExample;
import org.eclipse.nebula.widgets.nattable.util.GUIHelper;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
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.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 TabbedNatExampleRunner {
private static CTabFolder tabFolder;
private static Map<INatExample, Control> exampleControlMap = new HashMap<INatExample, Control>();
private static Map<String, INatExample> examplePathMap = new HashMap<String, INatExample>();
private static Link link;;
public static void run(String... examplePaths)
throws InstantiationException, IllegalAccessException,
ClassNotFoundException {
run(1000, 600, examplePaths);
}
public static void run(int shellWidth, int shellHeight,
final String... examplePaths) throws InstantiationException,
IllegalAccessException, ClassNotFoundException {
// Setup
final Display display = Display.getDefault();
final Shell shell = new Shell(display, SWT.SHELL_TRIM);
shell.setLayout(new GridLayout(2, false));
shell.setSize(shellWidth, shellHeight);
shell.setText("Examples demonstrating NatTable features");
// Nav tree
final TreeViewer navTreeViewer = new TreeViewer(shell);
GridData gridData = new GridData(GridData.FILL_VERTICAL);
gridData.widthHint = 200;
navTreeViewer.getControl().setLayoutData(gridData);
final NavContentProvider contentProvider = new NavContentProvider();
navTreeViewer.setContentProvider(contentProvider);
navTreeViewer.setLabelProvider(new NavLabelProvider(contentProvider));
navTreeViewer.setInput(examplePaths);
navTreeViewer.addDoubleClickListener(new IDoubleClickListener() {
@Override
public void doubleClick(DoubleClickEvent event) {
TreeSelection selection = (TreeSelection) event.getSelection();
for (TreePath path : selection.getPaths()) {
// check for item - if node expand/collapse, if child open
if (contentProvider.hasChildren(path.getLastSegment()
.toString())) {
boolean expanded = navTreeViewer.getExpandedState(path);
navTreeViewer.setExpandedState(path, !expanded);
} else {
openExampleInTab(path.getLastSegment().toString());
}
}
}
});
tabFolder = new CTabFolder(shell, SWT.BORDER);
tabFolder.setLayoutData(new GridData(GridData.FILL_BOTH));
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
for (INatExample example : exampleControlMap.keySet()) {
// Stop
example.onStop();
Control exampleControl = exampleControlMap.get(example);
exampleControl.dispose();
}
tabFolder.dispose();
shell.dispose();
display.dispose();
}
@SuppressWarnings("unchecked")
public static Class<? extends INatExample> getExampleClass(
String examplePath) {
String className = examplePath.replace('/', '.');
try {
Class<?> clazz = Class.forName(className);
if (INatExample.class.isAssignableFrom(clazz)
&& !Modifier.isAbstract(clazz.getModifiers())) {
return (Class<? extends INatExample>) clazz;
}
} catch (Exception e) {
throw new RuntimeException(e);
}
return null;
}
public static INatExample getExample(String examplePath) {
INatExample example = examplePathMap.get(examplePath);
if (example == null) {
String path = examplePath;
if (examplePath.startsWith("/"
+ INatExample.TUTORIAL_EXAMPLES_PREFIX)) {
path = examplePath.replace("/"
+ INatExample.TUTORIAL_EXAMPLES_PREFIX,
INatExample.BASE_PATH + "/");
} else if (examplePath.startsWith("/"
+ INatExample.CLASSIC_EXAMPLES_PREFIX)) {
path = examplePath.replace("/"
+ INatExample.CLASSIC_EXAMPLES_PREFIX,
INatExample.CLASSIC_BASE_PATH + "/");
}
if (path.startsWith("/"))
path = path.substring(1);
Class<? extends INatExample> exampleClass = getExampleClass(path);
if (exampleClass != null) {
try {
example = exampleClass.newInstance();
examplePathMap.put(examplePath, example);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
return example;
}
private static void openExampleInTab(final String examplePath) {
final INatExample example = getExample(examplePath);
if (example == null) {
return;
}
final String exampleName = example.getName();
final CTabItem tabItem = new CTabItem(tabFolder, SWT.CLOSE);
tabItem.setText(exampleName);
tabItem.addDisposeListener(new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
// Stop
example.onStop();
Control exampleControl = exampleControlMap.get(example);
if (exampleControl != null && !exampleControl.isDisposed()) {
exampleControl.dispose();
}
exampleControlMap.remove(example);
examplePathMap.remove(examplePath);
link.dispose();
}
});
final Composite tabComposite = new Composite(tabFolder, SWT.NONE);
tabComposite.setLayout(new GridLayout(1, false));
// Create example control
final Control exampleControl = example
.createExampleControl(tabComposite);
exampleControl.setLayoutData(new GridData(GridData.FILL_BOTH));
exampleControlMap.put(example, exampleControl);
// Description
final String description = example.getDescription();
if (description != null && description.length() > 0) {
final Group descriptionGroup = new Group(tabComposite, 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);
}
link = new Link(tabComposite, SWT.NONE);
link.setText("<a href=\"" + 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 + "/");
}
String source = getResourceAsString(path + ".java");
if (source != null) {
viewSource(exampleName, source);
}
}
};
link.addSelectionListener(linkSelectionListener);
tabItem.setControl(tabComposite);
// Start
example.onStart();
tabFolder.setSelection(tabItem);
}
private static String getResourceAsString(String resource) {
InputStream inStream = TabbedNatExampleRunner.class
.getResourceAsStream(resource);
if (inStream != null) {
StringBuffer strBuf = new StringBuffer();
try {
int i = -1;
while ((i = inStream.read()) != -1) {
strBuf.append((char) i);
}
return strBuf.toString();
} catch (IOException e) {
e.printStackTrace();
}
} else {
System.out.println("null stream for resource " + resource);
}
return null;
}
private static 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();
}
}