bundles/org.eclipse.swt.tools.spies/src/org/eclipse/swt/tools/views/SpyView.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2016 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.tools.views;

 import java.io.*;
 import java.lang.reflect.*;

 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.action.*;
 import org.eclipse.jface.resource.*;
 import org.eclipse.swt.*;
 import org.eclipse.swt.custom.*;
 import org.eclipse.swt.tools.internal.*;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.*;
 import org.eclipse.ui.part.*;

 public class SpyView extends ViewPart {
 	private StyledText output;
 	private Action spyAction, fullyQualifiedAction;
 	private Listener keyFilter;
 	private Runnable timer;
 	private Control lastControl;
 	private Field field;

 	static final int TIMEOUT = 100;

 	private static final ImageDescriptor SPY_IMAGE_DESCRIPTOR = ImageDescriptor.createFromURL(
 			FileLocator.find(Platform.getBundle(SpiesPlugin.PLUGIN_ID), new Path("icons/spy.png"), null));
 	/**
 	 * This is a callback that will allow us
 	 * to create the viewer and initialize it.
 	 */
 	@Override
 	public void createPartControl(Composite parent) {
 		output = new StyledText(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.READ_ONLY);

 		keyFilter = e -> {
 			// If this accelerator changes, change the tooltip text
 			if (e.keyCode == '.' && e.stateMask == (SWT.ALT | SWT.SHIFT | SWT.CONTROL)) {
 				if (spyAction.isChecked()) {
 					spyAction.setChecked(false);
 				} else {
 					spyAction.setChecked(true);
 					spyAction.run();
 				}
 				e.type = SWT.None;
 			}
 		};
 		parent.getDisplay().addFilter(SWT.KeyDown, keyFilter);

 		timer = new Runnable() {
 			@Override
 			public void run() {
 				if (output == null || output.isDisposed() || !spyAction.isChecked()) return;
 				Display display = output.getDisplay();
 				Control control = display.getCursorControl();
 				if (control != lastControl) {
 					StringBuilder text = new StringBuilder();
 					if (control != null) {
 						text.append(getName(control)+"@"+getOSHandle(control)+"\n");
 						text.append("\tStyle: "+getStyle(control)+"\n");
 						text.append("\tLayout Data: "+getName(control.getLayoutData())+"\n");
 						text.append("\tBounds: "+control.getBounds()+"\n");
 						if (control instanceof Composite && ((Composite)control).getLayout() != null) {
 							text.append("\tLayout: "+getName(((Composite)control).getLayout())+"\n");
 						}
 						text.append("\n");
 						if (control instanceof Composite) {
 							text.append("\nChildren:\n");
 							for (Control element : ((Composite)control).getChildren()) {
 								text.append("\t"+getName(element)+"\n");
 							}
 						}
 						Composite parent = control.getParent();
 						if (parent != null) {
 							text.append("\nPeers:\n");
 							for (Control peer : parent.getChildren()) {
 								text.append("\t");
 								if (peer == control) text.append("*");
 								text.append(getName(peer)+"@"+getOSHandle(peer));
 								text.append(" Layout Data: "+getName(peer.getLayoutData()));
 								text.append(" Bounds: "+peer.getBounds());
 								text.append("\n");
 							}
 							text.append("\nParent Tree:\n");
 							Composite[] parents = new Composite[0];
 							while (parent != null) {
 								Composite[] newParents = new Composite[parents.length + 1];
 								System.arraycopy(parents, 0, newParents, 0, parents.length);
 								newParents[parents.length] = parent;
 								parents = newParents;
 								parent = parent.getParent();
 							}
 							for (int i = parents.length - 1; i >= 0; i--) {
 								String prefix = "\t";
 								for (int j = 0; j < parents.length - i - 1; j++) {
 									prefix += "\t";
 								}
 								text.append(prefix + getName(parents[i])+"@"+getOSHandle(parents[i])+"\n");
 								text.append(prefix+"\t Style: "+getStyle(parents[i])+"\n");
 								text.append(prefix+"\t Bounds: "+parents[i].getBounds()+"\n");
 								text.append(prefix+"\t Layout: "+getName(parents[i].getLayout())+"\n");
 								text.append(prefix+"\t LayoutData: "+getName(parents[i].getLayoutData())+"\n");
 							}
 						}
 						Error error = (Error)control.getData("StackTrace");
 						if (error != null) {
 							text.append("\nCreation Stack Trace:\n");
 							ByteArrayOutputStream stream = new ByteArrayOutputStream();
 							PrintStream s = new PrintStream(stream);
 							error.printStackTrace(s);
 							text.append(stream.toString());
 						}
 					}
 					output.setText(text.toString());
 				}
 				lastControl = control;
 				display.timerExec(100, this);
 			}
 		};

 		makeActions();
 		contributeToActionBars();
 	}

 	String getName(Object object) {
 		if (object == null) return "null";
 		String name = object.toString ();
 		if (fullyQualifiedAction.isChecked()) {
 			int index = name.indexOf(' ');
 			if (index >= 0 && name.length() >= 1) {
 				name = object.getClass ().getName () + name.substring(index);
 			}
 		}
 		return name;
 	}

 	/**
 	 * Passing the focus request to the viewer's control.
 	 */
 	@Override
 	public void setFocus() {
 		if (output != null & !output.isDisposed()) output.setFocus();
 	}

 	private String getOSHandle(Control control) {
 		if (field == null) {
 			for (String fieldName : new String[]{"handle", "view"}) {
 				try {
 					field = control.getClass().getField(fieldName);
 					if (field != null) break;
 				} catch (Throwable e) {}
 			}
 		}
 		try {
 			return field.get(control).toString();
 		} catch (Throwable e) {}
 		return "";
 	}

 	private void contributeToActionBars() {
 		IActionBars bars = getViewSite().getActionBars();
 		fillLocalPullDown(bars.getMenuManager());
 		fillLocalToolBar(bars.getToolBarManager());
 	}

 	@Override
 	public void dispose() {
 		if (keyFilter != null) {
 			Display.getCurrent().removeFilter(SWT.KeyDown, keyFilter);
 		}
 		super.dispose();
 	}

 	private void fillLocalPullDown(IMenuManager manager) {
 		manager.add(spyAction);
 		manager.add(fullyQualifiedAction);
 	}

 	private void fillLocalToolBar(IToolBarManager manager) {
 		manager.add(spyAction);
 	}

 	private void makeActions() {
 		spyAction = new Action("Spy", IAction.AS_CHECK_BOX) {
 			@Override
 			public void run() {
 				Display.getCurrent().timerExec(TIMEOUT, timer);
 			}
 		};
 		spyAction.setToolTipText("Toggle Spy (CONTROL+ALT+SHIFT+.)");
 		spyAction.setImageDescriptor(SPY_IMAGE_DESCRIPTOR);

 		fullyQualifiedAction = new Action("Fully Qualify Names", IAction.AS_CHECK_BOX) {
 			@Override
 			public void run() {
 			}
 		};
 	}

 	private String getStyle(Widget w) {
 		//MODELESS = 0;
 		//BAR = 1 << 1;
 		//SEPARATOR = 1 << 1;
 		//TOGGLE = 1 << 1;
 		//MULTI = 1 << 1;
 		//INDETERMINATE = 1 << 1;
 		//DBCS = 1 << 1;
 		//ALPHA = 1 << 2;
 		//TOOL = 1 << 2;
 		//SINGLE = 1 << 2;
 		//ARROW = 1 << 2;
 		//DROP_DOWN = 1 << 2;
 		//SHADOW_IN = 1 << 2;
 		//POP_UP = 1 << 3;
 		//PUSH = 1 << 3;
 		//READ_ONLY = 1 << 3;
 		//SHADOW_OUT = 1 << 3;
 		//NO_TRIM = 1 << 3;
 		//NATIVE = 1 << 3;
 		//RESIZE = 1 << 4;
 		//SHADOW_ETCHED_IN = 1 << 4;
 		//RADIO = 1 << 4;
 		//PHONETIC = 1 << 4;
 		//ROMAN = 1 << 5;
 		//CHECK = 1 << 5;
 		//SHADOW_NONE = 1 << 5;
 		//TITLE = 1 << 5;
 		//DATE = 1 << 5;
 		//CLOSE = 1 << 6;
 		//MENU = CLOSE;
 		//CASCADE = 1 << 6;
 		//WRAP = 1 << 6;
 		//SIMPLE = 1 << 6;
 		//SHADOW_ETCHED_OUT = 1 << 6;
 		//MIN = 1 << 7;
 		//UP = 1 << 7;
 		//TOP = UP;
 		//TIME = 1 << 7;
 		//HORIZONTAL = 1 << 8;
 		//H_SCROLL = 1 << 8;
 		//V_SCROLL = 1 << 9;
 		//VERTICAL = 1 << 9;
 		//MAX = 1 << 10;
 		//DOWN               = 1 << 10;
 		//BOTTOM             = DOWN;
 		//CALENDAR = 1 << 10;
 		//BORDER = 1 << 11;
 		//CLIP_CHILDREN = 1 << 12;
 		//BALLOON = 1 << 12;
 		//CLIP_SIBLINGS = 1 << 13;
 		//ON_TOP = 1 << 14;
 		//LEAD               = 1 << 14;
 		//LEFT               = LEAD;
 		//PRIMARY_MODAL = 1 << 15;
 		//HIDE_SELECTION = 1 << 15;
 		//SHORT = 1 << 15;
 		//MEDIUM = 1 << 16;
 		//FULL_SELECTION = 1 << 16;
 		//SMOOTH = 1 << 16;
 		//APPLICATION_MODAL = 1 << 16;
 		//SYSTEM_MODAL = 1 << 17;
 		//TRAIL              = 1 << 17;
 		//RIGHT              = TRAIL;
 		//NO_BACKGROUND = 1 << 18;
 		//NO_FOCUS = 1 << 19;
 		//NO_REDRAW_RESIZE = 1 << 20;
 		//NO_MERGE_PAINTS = 1 << 21;
 		//NO_RADIO_GROUP = 1 << 22;
 		//PASSWORD = 1 << 22;
 		//FLAT = 1 << 23;
 		//EMBEDDED = 1 << 24;
 		//CENTER = 1 << 24;
 		//LEFT_TO_RIGHT = 1 << 25;
 		//RIGHT_TO_LEFT = 1 << 26;
 		//MIRRORED = 1 << 27;
 		//VIRTUAL = 1 << 28;
 		//LONG = 1 << 28;
 		//DOUBLE_BUFFERED = 1 << 29;

 		int style = w.getStyle();
 		String result = "";
 		if (style == SWT.DEFAULT) {
 			return "DEFAULT - bad!";
 		}
 		if ((style & 1 << 1) != 0) {
 			if (w instanceof CTabFolder || w instanceof StyledText || w instanceof List || w instanceof Text || w instanceof Table || w instanceof Tree) {
 				result += "MULTI | ";
 			} else if (w instanceof Menu) {
 				result += "BAR | ";
 			} else if (w instanceof Label || w instanceof MenuItem || w instanceof ToolItem) {
 				result += "SEPARATOR | ";
 			} else if (w instanceof Button) {
 				result += "TOGGLE | ";
 			} else if (w instanceof ProgressBar) {
 				result += "INDETERMINATE | ";
 			} else {
 				result += "BAR or SEPARATOR or TOGGLE or MULTI or INDETERMINATE or DBCS | ";
 			}
 		}
 		if ((style & 1 << 2) != 0) {
 			if (w instanceof Menu || w instanceof ToolItem || w instanceof CoolItem || w instanceof Combo) {
 				result += "DROP_DOWN | ";
 			} else if (w instanceof Button) {
 				result += "ARROW | ";
 			} else if (w instanceof CTabFolder || w instanceof StyledText || w instanceof List || w instanceof Text || w instanceof Table || w instanceof Tree) {
 				result += "SINGLE | ";
 			} else if (w instanceof Label || w instanceof Group) {
 				result += "SHADOW_IN | ";
 			} else if (w instanceof Decorations) {
 				result += "TOOL | ";
 			} else {
 				result += "ALPHA or TOOL or SINGLE or ARROW or DROP_DOWN or SHADOW_IN | ";
 			}
 		}
 		if ((style & 1 << 3) != 0) {
 			if (w instanceof Menu) {
 				result += "POP_UP | ";
 			} else if (w instanceof Button || w instanceof MenuItem || w instanceof ToolItem) {
 				result += "PUSH | ";
 			} else if (w instanceof Combo || w instanceof Text || w instanceof StyledText) {
 				result += "READ_ONLY | ";
 			} else if (w instanceof Label || w instanceof Group || w instanceof ToolBar) {
 				result += "SHADOW_OUT | ";
 			} else if (w instanceof Decorations) {
 				result += "NO_TRIM | ";
 			} else {
 				result += "POP_UP or PUSH or READ_ONLY or SHADOW_OUT or NO_TRIM or NATIVE | ";
 			}
 		}
 		if ((style & 1 << 4) != 0) {
 			if (w instanceof Button || w instanceof MenuItem || w instanceof ToolItem) {
 				result += "RADIO | ";
 			} else if (w instanceof Group) {
 				result += "SHADOW_ETCHED_IN | ";
 			} else if (w instanceof Decorations || w instanceof Tracker) {
 				result += "RESIZE | ";
 			} else {
 				result += "RESIZE or SHADOW_ETCHED_IN or RADIO or PHONETIC | ";
 			}
 		}
 		if ((style & 1 << 5) != 0) {
 			if (w instanceof Button || w instanceof MenuItem || w instanceof ToolItem || w instanceof Table || w instanceof Tree) {
 				result += "CHECK | ";
 			} else if (w instanceof Label || w instanceof Group) {
 				result += "SHADOW_NONE | ";
 			} else if (w instanceof Decorations) {
 				result += "TITLE | ";
 			} else if (w instanceof DateTime) {
 				result += "DATE | ";
 			} else {
 				result += "ROMAN or CHECK  or SHADOW_NONE or TITLE | ";
 			}
 		}
 		if ((style & 1 << 6) != 0) {
 			if (w instanceof MenuItem) {
 				result += "CASCADE | ";
 			} else if (w instanceof StyledText || w instanceof Label || w instanceof Text || w instanceof ToolBar) {
 				result += "WRAP | ";
 			} else if (w instanceof Combo) {
 				result += "SIMPLE | ";
 			} else if (w instanceof Group) {
 				result += "SHADOW_ETCHED_OUT | ";
 			} else if (w instanceof Decorations || w instanceof CTabFolder || w instanceof CTabItem) {
 				result += "CLOSE | ";
 			} else {
 				result += "CLOSE or MENU or CASCADE or WRAP or SIMPLE or SHADOW_ETCHED_OUT | ";
 			}
 		}
 		if ((style & 1 << 7) != 0) {
 			if (w instanceof Decorations) {
 				result += "MIN | ";
 			} else if (w instanceof Button || w instanceof Tracker) {
 				result += "UP | ";
 			} else if (w instanceof CTabFolder) {
 				result += "TOP | ";
 			} else if (w instanceof DateTime) {
 				result += "TIME | ";
 			} else {
 				result += "MIN or UP or TOP | ";
 			}
 		}
 		if ((style & 1 << 8) != 0) {
 			result += "HORIZONTAL | ";
 		}
 		if ((style & 1 << 9) != 0) {
 			result += "VERTICAL | ";
 		}
 		if ((style & 1 << 10) != 0) {
 			if (w instanceof Decorations) {
 				result += "MAX | ";
 			} else if (w instanceof Button || w instanceof Tracker) {
 				result += "DOWN | ";
 			} else if (w instanceof CTabFolder) {
 				result += "BOTTOM | ";
 			} else if (w instanceof DateTime) {
 				result += "CALENDAR | ";
 			} else {
 				result += "MAX or DOWN or BOTTOM | ";
 			}
 		}
 		if ((style & 1 << 11) != 0) {
 			result += "BORDER | ";
 		}
 		if ((style & 1 << 12) != 0) {
 			if (w instanceof ToolTip) {
 				result += "BALLOON | ";
 			} else {
 				result += "CLIP_CHILDREN | ";
 			}
 		}
 		if ((style & 1 << 13) != 0) {
 			result += "CLIP_SIBLINGS | ";
 		}
 		if ((style & 1 << 14) != 0) {
 			result += "ON_TOP or LEAD or LEFT | ";
 		}
 		if ((style & 1 << 15) != 0) {
 			if (w instanceof Shell) {
 				result += "PRIMARY_MODAL | ";
 			} else if (w instanceof Table || w instanceof Tree) {
 				result += "HIDE_SELECTION | ";
 			} else if (w instanceof DateTime) {
 				result += "SHORT | ";
 			} else {
 				result += "PRIMARY_MODAL or HIDE_SELECTION | ";
 			}
 		}
 		if ((style & 1 << 16) != 0) {
 			if (w instanceof StyledText || w instanceof Table || w instanceof Tree) {
 				result += "FULL_SELECTION | ";
 			} else if (w instanceof Shell) {
 				result += "APPLICATION_MODAL | ";
 			} else if (w instanceof ProgressBar) {
 				result += "SMOOTH | ";
 			} else if (w instanceof DateTime) {
 				result += "MEDIUM | ";
 			} else {
 				result += "FULL_SELECTION or SMOOTH or APPLICATION_MODAL | ";
 			}
 		}
 		if ((style & 1 << 17) != 0) {
 			if (w instanceof Shell) {
 				result += "SYSTEM_MODAL | ";
 			} else if (w instanceof Button || w instanceof Label || w instanceof TableColumn || w instanceof Tracker || w instanceof ToolBar) {
 				result += "TRAIL | ";
 			} else {
 				result += "SYSTEM_MODAL or TRAIL or RIGHT | ";
 			}
 		}
 		if ((style & 1 << 18) != 0) {
 			result += "NO_BACKGROUND | ";
 		}
 		if ((style & 1 << 19) != 0) {
 			result += "NO_FOCUS | ";
 		}
 		if ((style & 1 << 20) != 0) {
 			result += "NO_REDRAW_RESIZE | ";
 		}
 		if ((style & 1 << 21) != 0) {
 			result += "NO_MERGE_PAINTS | ";
 		}
 		if ((style & 1 << 22) != 0) {
 			if (w instanceof Text) {
 				result += "PASSWORD | ";
 			} else if (w instanceof Composite) {
 				result += "NO_RADIO_GROUP | ";
 			} else {
 				result += "NO_RADIO_GROUP or PASSWORD | ";
 			}
 		}
 		if ((style & 1 << 23) != 0) {
 			result += "FLAT | ";
 		}
 		if ((style & 1 << 24) != 0) {
 			if (w instanceof Button || w instanceof Label || w instanceof TableColumn) {
 				result += "CENTER | ";
 			} else {
 				result += "EMBEDDED or CENTER | ";
 			}
 		}
 		if ((style & 1 << 25) != 0) {
 			result += "LEFT_TO_RIGHT | ";
 		}
 		if ((style & 1 << 26) != 0) {
 			result += "RIGHT_TO_LEFT | ";
 		}
 		if ((style & 1 << 27) != 0) {
 			result += "MIRRORED | ";
 		}
 		if ((style & 1 << 28) != 0) {
 			if (w instanceof DateTime) {
 				result += "LONG | ";
 			} else {
 				result += "VIRTUAL | ";
 			}
 		}
 		if ((style & 1 << 29) != 0) {
 			result += "DOUBLE_BUFFERED | ";
 		}
 		int lastOr = result.lastIndexOf("|");
 		if (lastOr == result.length() - 2 ) result = result.substring(0, result.length() - 2);
 		return result;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2016 IBM Corporation and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.tools.views;

	import java.io.*;
	import java.lang.reflect.*;

	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.action.*;
	import org.eclipse.jface.resource.*;
	import org.eclipse.swt.*;
	import org.eclipse.swt.custom.*;
	import org.eclipse.swt.tools.internal.*;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.*;
	import org.eclipse.ui.part.*;

	public class SpyView extends ViewPart {
	private StyledText output;
	private Action spyAction, fullyQualifiedAction;
	private Listener keyFilter;
	private Runnable timer;
	private Control lastControl;
	private Field field;

	static final int TIMEOUT = 100;

	private static final ImageDescriptor SPY_IMAGE_DESCRIPTOR = ImageDescriptor.createFromURL(
	FileLocator.find(Platform.getBundle(SpiesPlugin.PLUGIN_ID), new Path("icons/spy.png"), null));
	/**
	* This is a callback that will allow us
	* to create the viewer and initialize it.
	*/
	@Override
	public void createPartControl(Composite parent) {
	output = new StyledText(parent, SWT.MULTI \| SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.READ_ONLY);

	keyFilter = e -> {
	// If this accelerator changes, change the tooltip text
	if (e.keyCode == '.' && e.stateMask == (SWT.ALT \| SWT.SHIFT \| SWT.CONTROL)) {
	if (spyAction.isChecked()) {
	spyAction.setChecked(false);
	} else {
	spyAction.setChecked(true);
	spyAction.run();
	}
	e.type = SWT.None;
	}
	};
	parent.getDisplay().addFilter(SWT.KeyDown, keyFilter);

	timer = new Runnable() {
	@Override
	public void run() {
	if (output == null \|\| output.isDisposed() \|\| !spyAction.isChecked()) return;
	Display display = output.getDisplay();
	Control control = display.getCursorControl();
	if (control != lastControl) {
	StringBuilder text = new StringBuilder();
	if (control != null) {
	text.append(getName(control)+"@"+getOSHandle(control)+"\n");
	text.append("\tStyle: "+getStyle(control)+"\n");
	text.append("\tLayout Data: "+getName(control.getLayoutData())+"\n");
	text.append("\tBounds: "+control.getBounds()+"\n");
	if (control instanceof Composite && ((Composite)control).getLayout() != null) {
	text.append("\tLayout: "+getName(((Composite)control).getLayout())+"\n");
	}
	text.append("\n");
	if (control instanceof Composite) {
	text.append("\nChildren:\n");
	for (Control element : ((Composite)control).getChildren()) {
	text.append("\t"+getName(element)+"\n");
	}
	}
	Composite parent = control.getParent();
	if (parent != null) {
	text.append("\nPeers:\n");
	for (Control peer : parent.getChildren()) {
	text.append("\t");
	if (peer == control) text.append("*");
	text.append(getName(peer)+"@"+getOSHandle(peer));
	text.append(" Layout Data: "+getName(peer.getLayoutData()));
	text.append(" Bounds: "+peer.getBounds());
	text.append("\n");
	}
	text.append("\nParent Tree:\n");
	Composite[] parents = new Composite[0];
	while (parent != null) {
	Composite[] newParents = new Composite[parents.length + 1];
	System.arraycopy(parents, 0, newParents, 0, parents.length);
	newParents[parents.length] = parent;
	parents = newParents;
	parent = parent.getParent();
	}
	for (int i = parents.length - 1; i >= 0; i--) {
	String prefix = "\t";
	for (int j = 0; j < parents.length - i - 1; j++) {
	prefix += "\t";
	}
	text.append(prefix + getName(parents[i])+"@"+getOSHandle(parents[i])+"\n");
	text.append(prefix+"\t Style: "+getStyle(parents[i])+"\n");
	text.append(prefix+"\t Bounds: "+parents[i].getBounds()+"\n");
	text.append(prefix+"\t Layout: "+getName(parents[i].getLayout())+"\n");
	text.append(prefix+"\t LayoutData: "+getName(parents[i].getLayoutData())+"\n");
	}
	}
	Error error = (Error)control.getData("StackTrace");
	if (error != null) {
	text.append("\nCreation Stack Trace:\n");
	ByteArrayOutputStream stream = new ByteArrayOutputStream();
	PrintStream s = new PrintStream(stream);
	error.printStackTrace(s);
	text.append(stream.toString());
	}
	}
	output.setText(text.toString());
	}
	lastControl = control;
	display.timerExec(100, this);
	}
	};

	makeActions();
	contributeToActionBars();
	}

	String getName(Object object) {
	if (object == null) return "null";
	String name = object.toString ();
	if (fullyQualifiedAction.isChecked()) {
	int index = name.indexOf(' ');
	if (index >= 0 && name.length() >= 1) {
	name = object.getClass ().getName () + name.substring(index);
	}
	}
	return name;
	}

	/**
	* Passing the focus request to the viewer's control.
	*/
	@Override
	public void setFocus() {
	if (output != null & !output.isDisposed()) output.setFocus();
	}

	private String getOSHandle(Control control) {
	if (field == null) {
	for (String fieldName : new String[]{"handle", "view"}) {
	try {
	field = control.getClass().getField(fieldName);
	if (field != null) break;
	} catch (Throwable e) {}
	}
	}
	try {
	return field.get(control).toString();
	} catch (Throwable e) {}
	return "";
	}

	private void contributeToActionBars() {
	IActionBars bars = getViewSite().getActionBars();
	fillLocalPullDown(bars.getMenuManager());
	fillLocalToolBar(bars.getToolBarManager());
	}

	@Override
	public void dispose() {
	if (keyFilter != null) {
	Display.getCurrent().removeFilter(SWT.KeyDown, keyFilter);
	}
	super.dispose();
	}

	private void fillLocalPullDown(IMenuManager manager) {
	manager.add(spyAction);
	manager.add(fullyQualifiedAction);
	}

	private void fillLocalToolBar(IToolBarManager manager) {
	manager.add(spyAction);
	}

	private void makeActions() {
	spyAction = new Action("Spy", IAction.AS_CHECK_BOX) {
	@Override
	public void run() {
	Display.getCurrent().timerExec(TIMEOUT, timer);
	}
	};
	spyAction.setToolTipText("Toggle Spy (CONTROL+ALT+SHIFT+.)");
	spyAction.setImageDescriptor(SPY_IMAGE_DESCRIPTOR);

	fullyQualifiedAction = new Action("Fully Qualify Names", IAction.AS_CHECK_BOX) {
	@Override
	public void run() {
	}
	};
	}

	private String getStyle(Widget w) {
	//MODELESS = 0;
	//BAR = 1 << 1;
	//SEPARATOR = 1 << 1;
	//TOGGLE = 1 << 1;
	//MULTI = 1 << 1;
	//INDETERMINATE = 1 << 1;
	//DBCS = 1 << 1;
	//ALPHA = 1 << 2;
	//TOOL = 1 << 2;
	//SINGLE = 1 << 2;
	//ARROW = 1 << 2;
	//DROP_DOWN = 1 << 2;
	//SHADOW_IN = 1 << 2;
	//POP_UP = 1 << 3;
	//PUSH = 1 << 3;
	//READ_ONLY = 1 << 3;
	//SHADOW_OUT = 1 << 3;
	//NO_TRIM = 1 << 3;
	//NATIVE = 1 << 3;
	//RESIZE = 1 << 4;
	//SHADOW_ETCHED_IN = 1 << 4;
	//RADIO = 1 << 4;
	//PHONETIC = 1 << 4;
	//ROMAN = 1 << 5;
	//CHECK = 1 << 5;
	//SHADOW_NONE = 1 << 5;
	//TITLE = 1 << 5;
	//DATE = 1 << 5;
	//CLOSE = 1 << 6;
	//MENU = CLOSE;
	//CASCADE = 1 << 6;
	//WRAP = 1 << 6;
	//SIMPLE = 1 << 6;
	//SHADOW_ETCHED_OUT = 1 << 6;
	//MIN = 1 << 7;
	//UP = 1 << 7;
	//TOP = UP;
	//TIME = 1 << 7;
	//HORIZONTAL = 1 << 8;
	//H_SCROLL = 1 << 8;
	//V_SCROLL = 1 << 9;
	//VERTICAL = 1 << 9;
	//MAX = 1 << 10;
	//DOWN = 1 << 10;
	//BOTTOM = DOWN;
	//CALENDAR = 1 << 10;
	//BORDER = 1 << 11;
	//CLIP_CHILDREN = 1 << 12;
	//BALLOON = 1 << 12;
	//CLIP_SIBLINGS = 1 << 13;
	//ON_TOP = 1 << 14;
	//LEAD = 1 << 14;
	//LEFT = LEAD;
	//PRIMARY_MODAL = 1 << 15;
	//HIDE_SELECTION = 1 << 15;
	//SHORT = 1 << 15;
	//MEDIUM = 1 << 16;
	//FULL_SELECTION = 1 << 16;
	//SMOOTH = 1 << 16;
	//APPLICATION_MODAL = 1 << 16;
	//SYSTEM_MODAL = 1 << 17;
	//TRAIL = 1 << 17;
	//RIGHT = TRAIL;
	//NO_BACKGROUND = 1 << 18;
	//NO_FOCUS = 1 << 19;
	//NO_REDRAW_RESIZE = 1 << 20;
	//NO_MERGE_PAINTS = 1 << 21;
	//NO_RADIO_GROUP = 1 << 22;
	//PASSWORD = 1 << 22;
	//FLAT = 1 << 23;
	//EMBEDDED = 1 << 24;
	//CENTER = 1 << 24;
	//LEFT_TO_RIGHT = 1 << 25;
	//RIGHT_TO_LEFT = 1 << 26;
	//MIRRORED = 1 << 27;
	//VIRTUAL = 1 << 28;
	//LONG = 1 << 28;
	//DOUBLE_BUFFERED = 1 << 29;

	int style = w.getStyle();
	String result = "";
	if (style == SWT.DEFAULT) {
	return "DEFAULT - bad!";
	}
	if ((style & 1 << 1) != 0) {
	if (w instanceof CTabFolder \|\| w instanceof StyledText \|\| w instanceof List \|\| w instanceof Text \|\| w instanceof Table \|\| w instanceof Tree) {
	result += "MULTI \| ";
	} else if (w instanceof Menu) {
	result += "BAR \| ";
	} else if (w instanceof Label \|\| w instanceof MenuItem \|\| w instanceof ToolItem) {
	result += "SEPARATOR \| ";
	} else if (w instanceof Button) {
	result += "TOGGLE \| ";
	} else if (w instanceof ProgressBar) {
	result += "INDETERMINATE \| ";
	} else {
	result += "BAR or SEPARATOR or TOGGLE or MULTI or INDETERMINATE or DBCS \| ";
	}
	}
	if ((style & 1 << 2) != 0) {
	if (w instanceof Menu \|\| w instanceof ToolItem \|\| w instanceof CoolItem \|\| w instanceof Combo) {
	result += "DROP_DOWN \| ";
	} else if (w instanceof Button) {
	result += "ARROW \| ";
	} else if (w instanceof CTabFolder \|\| w instanceof StyledText \|\| w instanceof List \|\| w instanceof Text \|\| w instanceof Table \|\| w instanceof Tree) {
	result += "SINGLE \| ";
	} else if (w instanceof Label \|\| w instanceof Group) {
	result += "SHADOW_IN \| ";
	} else if (w instanceof Decorations) {
	result += "TOOL \| ";
	} else {
	result += "ALPHA or TOOL or SINGLE or ARROW or DROP_DOWN or SHADOW_IN \| ";
	}
	}
	if ((style & 1 << 3) != 0) {
	if (w instanceof Menu) {
	result += "POP_UP \| ";
	} else if (w instanceof Button \|\| w instanceof MenuItem \|\| w instanceof ToolItem) {
	result += "PUSH \| ";
	} else if (w instanceof Combo \|\| w instanceof Text \|\| w instanceof StyledText) {
	result += "READ_ONLY \| ";
	} else if (w instanceof Label \|\| w instanceof Group \|\| w instanceof ToolBar) {
	result += "SHADOW_OUT \| ";
	} else if (w instanceof Decorations) {
	result += "NO_TRIM \| ";
	} else {
	result += "POP_UP or PUSH or READ_ONLY or SHADOW_OUT or NO_TRIM or NATIVE \| ";
	}
	}
	if ((style & 1 << 4) != 0) {
	if (w instanceof Button \|\| w instanceof MenuItem \|\| w instanceof ToolItem) {
	result += "RADIO \| ";
	} else if (w instanceof Group) {
	result += "SHADOW_ETCHED_IN \| ";
	} else if (w instanceof Decorations \|\| w instanceof Tracker) {
	result += "RESIZE \| ";
	} else {
	result += "RESIZE or SHADOW_ETCHED_IN or RADIO or PHONETIC \| ";
	}
	}
	if ((style & 1 << 5) != 0) {
	if (w instanceof Button \|\| w instanceof MenuItem \|\| w instanceof ToolItem \|\| w instanceof Table \|\| w instanceof Tree) {
	result += "CHECK \| ";
	} else if (w instanceof Label \|\| w instanceof Group) {
	result += "SHADOW_NONE \| ";
	} else if (w instanceof Decorations) {
	result += "TITLE \| ";
	} else if (w instanceof DateTime) {
	result += "DATE \| ";
	} else {
	result += "ROMAN or CHECK or SHADOW_NONE or TITLE \| ";
	}
	}
	if ((style & 1 << 6) != 0) {
	if (w instanceof MenuItem) {
	result += "CASCADE \| ";
	} else if (w instanceof StyledText \|\| w instanceof Label \|\| w instanceof Text \|\| w instanceof ToolBar) {
	result += "WRAP \| ";
	} else if (w instanceof Combo) {
	result += "SIMPLE \| ";
	} else if (w instanceof Group) {
	result += "SHADOW_ETCHED_OUT \| ";
	} else if (w instanceof Decorations \|\| w instanceof CTabFolder \|\| w instanceof CTabItem) {
	result += "CLOSE \| ";
	} else {
	result += "CLOSE or MENU or CASCADE or WRAP or SIMPLE or SHADOW_ETCHED_OUT \| ";
	}
	}
	if ((style & 1 << 7) != 0) {
	if (w instanceof Decorations) {
	result += "MIN \| ";
	} else if (w instanceof Button \|\| w instanceof Tracker) {
	result += "UP \| ";
	} else if (w instanceof CTabFolder) {
	result += "TOP \| ";
	} else if (w instanceof DateTime) {
	result += "TIME \| ";
	} else {
	result += "MIN or UP or TOP \| ";
	}
	}
	if ((style & 1 << 8) != 0) {
	result += "HORIZONTAL \| ";
	}
	if ((style & 1 << 9) != 0) {
	result += "VERTICAL \| ";
	}
	if ((style & 1 << 10) != 0) {
	if (w instanceof Decorations) {
	result += "MAX \| ";
	} else if (w instanceof Button \|\| w instanceof Tracker) {
	result += "DOWN \| ";
	} else if (w instanceof CTabFolder) {
	result += "BOTTOM \| ";
	} else if (w instanceof DateTime) {
	result += "CALENDAR \| ";
	} else {
	result += "MAX or DOWN or BOTTOM \| ";
	}
	}
	if ((style & 1 << 11) != 0) {
	result += "BORDER \| ";
	}
	if ((style & 1 << 12) != 0) {
	if (w instanceof ToolTip) {
	result += "BALLOON \| ";
	} else {
	result += "CLIP_CHILDREN \| ";
	}
	}
	if ((style & 1 << 13) != 0) {
	result += "CLIP_SIBLINGS \| ";
	}
	if ((style & 1 << 14) != 0) {
	result += "ON_TOP or LEAD or LEFT \| ";
	}
	if ((style & 1 << 15) != 0) {
	if (w instanceof Shell) {
	result += "PRIMARY_MODAL \| ";
	} else if (w instanceof Table \|\| w instanceof Tree) {
	result += "HIDE_SELECTION \| ";
	} else if (w instanceof DateTime) {
	result += "SHORT \| ";
	} else {
	result += "PRIMARY_MODAL or HIDE_SELECTION \| ";
	}
	}
	if ((style & 1 << 16) != 0) {
	if (w instanceof StyledText \|\| w instanceof Table \|\| w instanceof Tree) {
	result += "FULL_SELECTION \| ";
	} else if (w instanceof Shell) {
	result += "APPLICATION_MODAL \| ";
	} else if (w instanceof ProgressBar) {
	result += "SMOOTH \| ";
	} else if (w instanceof DateTime) {
	result += "MEDIUM \| ";
	} else {
	result += "FULL_SELECTION or SMOOTH or APPLICATION_MODAL \| ";
	}
	}
	if ((style & 1 << 17) != 0) {
	if (w instanceof Shell) {
	result += "SYSTEM_MODAL \| ";
	} else if (w instanceof Button \|\| w instanceof Label \|\| w instanceof TableColumn \|\| w instanceof Tracker \|\| w instanceof ToolBar) {
	result += "TRAIL \| ";
	} else {
	result += "SYSTEM_MODAL or TRAIL or RIGHT \| ";
	}
	}
	if ((style & 1 << 18) != 0) {
	result += "NO_BACKGROUND \| ";
	}
	if ((style & 1 << 19) != 0) {
	result += "NO_FOCUS \| ";
	}
	if ((style & 1 << 20) != 0) {
	result += "NO_REDRAW_RESIZE \| ";
	}
	if ((style & 1 << 21) != 0) {
	result += "NO_MERGE_PAINTS \| ";
	}
	if ((style & 1 << 22) != 0) {
	if (w instanceof Text) {
	result += "PASSWORD \| ";
	} else if (w instanceof Composite) {
	result += "NO_RADIO_GROUP \| ";
	} else {
	result += "NO_RADIO_GROUP or PASSWORD \| ";
	}
	}
	if ((style & 1 << 23) != 0) {
	result += "FLAT \| ";
	}
	if ((style & 1 << 24) != 0) {
	if (w instanceof Button \|\| w instanceof Label \|\| w instanceof TableColumn) {
	result += "CENTER \| ";
	} else {
	result += "EMBEDDED or CENTER \| ";
	}
	}
	if ((style & 1 << 25) != 0) {
	result += "LEFT_TO_RIGHT \| ";
	}
	if ((style & 1 << 26) != 0) {
	result += "RIGHT_TO_LEFT \| ";
	}
	if ((style & 1 << 27) != 0) {
	result += "MIRRORED \| ";
	}
	if ((style & 1 << 28) != 0) {
	if (w instanceof DateTime) {
	result += "LONG \| ";
	} else {
	result += "VIRTUAL \| ";
	}
	}
	if ((style & 1 << 29) != 0) {
	result += "DOUBLE_BUFFERED \| ";
	}
	int lastOr = result.lastIndexOf("\|");
	if (lastOr == result.length() - 2 ) result = result.substring(0, result.length() - 2);
	return result;
	}
	}