core/plugins/org.eclipse.dltk.debug.ui/src/org/eclipse/dltk/debug/ui/breakpoints/ScriptBreakpointPropertyPage.java - dltk/org.eclipse.dltk.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005, 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
  *

  *******************************************************************************/
 package org.eclipse.dltk.debug.ui.breakpoints;

 import org.eclipse.core.resources.IWorkspaceRunnable;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.debug.core.DebugPlugin;
 import org.eclipse.dltk.core.DLTKLanguageManager;
 import org.eclipse.dltk.debug.core.ScriptDebugManager;
 import org.eclipse.dltk.debug.core.model.IScriptBreakpoint;
 import org.eclipse.dltk.internal.ui.editor.ScriptSourceViewer;
 import org.eclipse.dltk.ui.DLTKUILanguageManager;
 import org.eclipse.dltk.ui.IDLTKUILanguageToolkit;
 import org.eclipse.dltk.ui.text.ScriptSourceViewerConfiguration;
 import org.eclipse.jface.text.Document;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.source.SourceViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.dialogs.PropertyPage;

 public class ScriptBreakpointPropertyPage extends PropertyPage {

 	// Enabled
 	private Button enabledBreakpointButton;

 	// Hit count checking
 	private Button hitCountCheckingButton;
 	private Combo hitConditionCombo;
 	private Text hitValueText;

 	// Expression
 	private SourceViewer expressionViewer;
 	private Button enableExpressionButton;

 	// Simple access methods
 	protected boolean getBreakointEnableState() {
 		return enabledBreakpointButton.getSelection();
 	}

 	protected boolean getEnabledHitChecking() {
 		return hitCountCheckingButton.getSelection();
 	}

 	protected void setEnabledHitChecking(boolean state) {
 		hitCountCheckingButton.setSelection(state);
 	}

 	// Hit value & condition
 	protected void setHitCondition(int condition) {
 		hitConditionCombo.select(condition);
 	}

 	protected int getHitCondition() {
 		return getEnabledHitChecking() ? hitConditionCombo.getSelectionIndex()
 				: -1;
 	}

 	protected void setHitValue(int value) {
 		hitValueText.setText(Integer.toString(value));
 	}

 	protected int getHitValue() {
 		return getEnabledHitChecking() ? Integer.parseInt(hitValueText
 				.getText()) : -1;
 	}

 	// Expression
 	protected void setExpression(String expression) {
 		expressionViewer.getDocument().set(expression);
 	}

 	protected String getExpression() {
 		return expressionViewer.getDocument().get();
 	}

 	protected void setExpressionState(boolean state) {
 		enableExpressionButton.setSelection(state);
 	}

 	protected boolean getExpressionState() {
 		return enableExpressionButton.getSelection();
 	}

 	protected Composite createComposite(Composite parent, int numColumns) {
 		Composite composit = new Composite(parent, SWT.NONE);
 		composit.setFont(parent.getFont());

 		GridLayout layout = new GridLayout(numColumns, false);
 		composit.setLayout(layout);
 		composit.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		return composit;
 	}

 	protected Button createRadioButton(Composite parent, String text) {
 		Button button = new Button(parent, SWT.RADIO | SWT.LEFT);
 		button.setText(text);
 		button.setFont(parent.getFont());
 		button.setLayoutData(new GridData());
 		return button;
 	}

 	protected Button createCheckButton(Composite parent, String text) {
 		Button button = new Button(parent, SWT.CHECK | SWT.LEFT);
 		button.setText(text);
 		button.setFont(parent.getFont());
 		button.setLayoutData(new GridData());
 		return button;
 	}

 	protected Label createLabel(Composite parent, String text) {
 		Label label = new Label(parent, SWT.NONE);
 		label.setText(text);
 		label.setFont(parent.getFont());
 		label.setLayoutData(new GridData());
 		return label;
 	}

 	// Static breakpoint information
 	protected void createLabels(Composite parent) throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		Composite labelComposite = createComposite(parent, 2);

 		// Script language
 		createLabel(labelComposite, BreakpointMessages.LanguageLabel);
 		createLabel(labelComposite, DLTKLanguageManager.getLanguageToolkit(
 				getNatureId()).getLanguageName());

 		// Resource name
 		String resourceName = breakpoint.getResourceName();
 		if (resourceName != null) {
 			createLabel(labelComposite, BreakpointMessages.FileLabel);
 			createLabel(labelComposite, resourceName);
 		}

 		// Hit count
 		createLabel(labelComposite, BreakpointMessages.HitCountLabel);
 		int hitCount = breakpoint.getHitCount();
 		createLabel(labelComposite,
 				hitCount == -1 ? BreakpointMessages.HitCountNotAvailableMessage
 						: Integer.toString(hitCount));
 		// from debugging engine

 		createTypeSpecificLabels(labelComposite);
 	}

 	protected void createTypeSpecificLabels(Composite parent)
 			throws CoreException {
 		// Nothing to do here
 	}

 	// Breakpoint information
 	protected void createButtons(Composite parent) throws CoreException {
 		Composite buttonsComposite = createComposite(parent, 1);

 		enabledBreakpointButton = createCheckButton(buttonsComposite,
 				BreakpointMessages.EnabledLabel);

 		createTypeSpecificButtons(buttonsComposite);
 	}

 	protected void createTypeSpecificButtons(Composite parent) {

 	}

 	protected void createHitCountEditor(Composite parent) {
 		Composite hitCountComposite = createComposite(parent, 4);

 		// Hit count checking
 		hitCountCheckingButton = createCheckButton(hitCountComposite,
 				BreakpointMessages.BreakWhenHitCountLabel);

 		hitCountCheckingButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				updateControlsState();
 			}
 		});

 		hitConditionCombo = new Combo(hitCountComposite, SWT.READ_ONLY);

 		// Hit condition
 		hitConditionCombo.add(BreakpointMessages.HitConditionGreaterOrEqual,
 				IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

 		hitConditionCombo.add(BreakpointMessages.HitConditionEqual,
 				IScriptBreakpoint.HIT_CONDITION_EQUAL);

 		hitConditionCombo.add(BreakpointMessages.HitConditionMultiple,
 				IScriptBreakpoint.HIT_CONDITION_MULTIPLE);

 		hitConditionCombo
 				.select(IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

 		hitConditionCombo.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				updateControlsState();
 			}
 		});

 		hitConditionCombo.setData(new GridData());

 		// Hit value
 		hitValueText = new Text(hitCountComposite, SWT.BORDER);
 		hitValueText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true,
 				false));

 		hitValueText.addKeyListener(new KeyAdapter() {
 			public void keyReleased(KeyEvent e) {
 				updateControlsState();
 			}
 		});

 		createLabel(hitCountComposite, BreakpointMessages.HitsLabel);
 	}

 	protected void createExpressionEditor(Composite parent) {
 		Group group = new Group(parent, SWT.NONE);
 		group.setLayout(new GridLayout(1, false));
 		group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

 		enableExpressionButton = new Button(group, SWT.CHECK);
 		enableExpressionButton.setText(BreakpointMessages.UseConditionLabel);
 		enableExpressionButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				updateControlsState();
 			}
 		});

 		expressionViewer = new ScriptSourceViewer(group, null, null, false,
 				SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL, null);

 		IDLTKUILanguageToolkit toolkit = DLTKUILanguageManager
 				.getLanguageToolkit(getNatureId());

 		IDocument document = new Document();

 		toolkit.getTextTools().setupDocumentPartitioner(document,
 				toolkit.getPartitioningId());

 		ScriptSourceViewerConfiguration config = toolkit
 				.createSourceViwerConfiguration();

 		expressionViewer.configure(config);
 		expressionViewer.setDocument(document);

 		expressionViewer.getControl().setLayoutData(
 				new GridData(SWT.FILL, SWT.FILL, true, true));

 	}

 	protected IScriptBreakpoint getBreakpoint() {
 		return (IScriptBreakpoint) getElement();
 	}

 	protected String getNatureId() {
 		ScriptDebugManager manager = ScriptDebugManager.getInstance();
 		return manager.getNatureByDebugModel(getBreakpoint()
 				.getModelIdentifier());
 	}

 	protected Control createContents(Composite parent) {
 		noDefaultAndApplyButton();
 		Composite composite = createComposite(parent, 1);

 		try {
 			createLabels(composite);
 			createButtons(composite);

 			if (hasHitCountEditor()) {
 				createHitCountEditor(composite);
 			}

 			if (hasExpressionEditor()) {
 				createExpressionEditor(composite);
 			}

 			loadValues();
 			updateControlsState();
 		} catch (CoreException e) {
 			// TODO: log exception
 		}

 		return composite;
 	}

 	protected boolean hasHitCountEditor() {
 		return true;
 	}

 	protected boolean hasExpressionEditor() {
 		return true;
 	}

 	protected void loadValues() throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		// Enabled
 		enabledBreakpointButton.setSelection(breakpoint.isEnabled());

 		// Hit conditions
 		if (hasHitCountEditor()) {

 			final int hitValue = breakpoint.getHitValue();
 			if (hitValue != -1) {
 				setHitValue(hitValue);
 				setHitCondition(breakpoint.getHitCondition());
 				setEnabledHitChecking(true);
 			} else {
 				setEnabledHitChecking(false);
 			}
 		}

 		// Expression
 		if (hasExpressionEditor()) {
 			setExpressionState(breakpoint.getExpressionState());
 			setExpression(breakpoint.getExpression());
 		}
 	}

 	protected void saveValues() throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		breakpoint.setEnabled(getBreakointEnableState());

 		if (hasHitCountEditor()) {
 			breakpoint.setHitValue(getHitValue());
 			breakpoint.setHitCondition(getHitCondition());
 		}

 		if (hasExpressionEditor()) {
 			breakpoint.setExpression(getExpression());
 			breakpoint.setExpressionState(getExpressionState());
 		}
 	}

 	protected void updateControlsState() {
 		// Hit count
 		if (hasHitCountEditor()) {
 			boolean hitChecking = hitCountCheckingButton.getSelection();
 			hitConditionCombo.setEnabled(hitChecking);
 			hitValueText.setEnabled(hitChecking);
 		}

 		// Expression
 		if (hasExpressionEditor()) {
 			boolean expressionEnabled = enableExpressionButton.getSelection();
 			Control control = expressionViewer.getControl();
 			control.setEnabled(expressionEnabled);
 		}

 		validateValues();
 	}

 	protected void validateValues() {
 		boolean valid = true;
 		String errorMessage = null;

 		if (hasHitCountEditor()) {
 			if (getEnabledHitChecking()) {
 				try {
 					getHitValue();
 				} catch (NumberFormatException e) {
 					valid = false;
 					errorMessage = BreakpointMessages.InvalidNumberOfHits;
 				}
 			}
 		}

 		setValid(valid);
 		setErrorMessage(errorMessage);
 	}

 	public boolean performOk() {
 		try {
 			ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
 				public void run(IProgressMonitor monitor) throws CoreException {
 					saveValues();
 					DebugPlugin.getDefault().getBreakpointManager()
 							.fireBreakpointChanged(getBreakpoint());
 				}
 			}, null, 0, null);
 		} catch (CoreException e) {
 			// TODO: log exception
 		}

 		return super.performOk();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005, 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
	*

	*******************************************************************************/
	package org.eclipse.dltk.debug.ui.breakpoints;

	import org.eclipse.core.resources.IWorkspaceRunnable;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.debug.core.DebugPlugin;
	import org.eclipse.dltk.core.DLTKLanguageManager;
	import org.eclipse.dltk.debug.core.ScriptDebugManager;
	import org.eclipse.dltk.debug.core.model.IScriptBreakpoint;
	import org.eclipse.dltk.internal.ui.editor.ScriptSourceViewer;
	import org.eclipse.dltk.ui.DLTKUILanguageManager;
	import org.eclipse.dltk.ui.IDLTKUILanguageToolkit;
	import org.eclipse.dltk.ui.text.ScriptSourceViewerConfiguration;
	import org.eclipse.jface.text.Document;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.source.SourceViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.dialogs.PropertyPage;

	public class ScriptBreakpointPropertyPage extends PropertyPage {

	// Enabled
	private Button enabledBreakpointButton;

	// Hit count checking
	private Button hitCountCheckingButton;
	private Combo hitConditionCombo;
	private Text hitValueText;

	// Expression
	private SourceViewer expressionViewer;
	private Button enableExpressionButton;

	// Simple access methods
	protected boolean getBreakointEnableState() {
	return enabledBreakpointButton.getSelection();
	}

	protected boolean getEnabledHitChecking() {
	return hitCountCheckingButton.getSelection();
	}

	protected void setEnabledHitChecking(boolean state) {
	hitCountCheckingButton.setSelection(state);
	}

	// Hit value & condition
	protected void setHitCondition(int condition) {
	hitConditionCombo.select(condition);
	}

	protected int getHitCondition() {
	return getEnabledHitChecking() ? hitConditionCombo.getSelectionIndex()
	: -1;
	}

	protected void setHitValue(int value) {
	hitValueText.setText(Integer.toString(value));
	}

	protected int getHitValue() {
	return getEnabledHitChecking() ? Integer.parseInt(hitValueText
	.getText()) : -1;
	}

	// Expression
	protected void setExpression(String expression) {
	expressionViewer.getDocument().set(expression);
	}

	protected String getExpression() {
	return expressionViewer.getDocument().get();
	}

	protected void setExpressionState(boolean state) {
	enableExpressionButton.setSelection(state);
	}

	protected boolean getExpressionState() {
	return enableExpressionButton.getSelection();
	}

	protected Composite createComposite(Composite parent, int numColumns) {
	Composite composit = new Composite(parent, SWT.NONE);
	composit.setFont(parent.getFont());

	GridLayout layout = new GridLayout(numColumns, false);
	composit.setLayout(layout);
	composit.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	return composit;
	}

	protected Button createRadioButton(Composite parent, String text) {
	Button button = new Button(parent, SWT.RADIO \| SWT.LEFT);
	button.setText(text);
	button.setFont(parent.getFont());
	button.setLayoutData(new GridData());
	return button;
	}

	protected Button createCheckButton(Composite parent, String text) {
	Button button = new Button(parent, SWT.CHECK \| SWT.LEFT);
	button.setText(text);
	button.setFont(parent.getFont());
	button.setLayoutData(new GridData());
	return button;
	}

	protected Label createLabel(Composite parent, String text) {
	Label label = new Label(parent, SWT.NONE);
	label.setText(text);
	label.setFont(parent.getFont());
	label.setLayoutData(new GridData());
	return label;
	}

	// Static breakpoint information
	protected void createLabels(Composite parent) throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	Composite labelComposite = createComposite(parent, 2);

	// Script language
	createLabel(labelComposite, BreakpointMessages.LanguageLabel);
	createLabel(labelComposite, DLTKLanguageManager.getLanguageToolkit(
	getNatureId()).getLanguageName());

	// Resource name
	String resourceName = breakpoint.getResourceName();
	if (resourceName != null) {
	createLabel(labelComposite, BreakpointMessages.FileLabel);
	createLabel(labelComposite, resourceName);
	}

	// Hit count
	createLabel(labelComposite, BreakpointMessages.HitCountLabel);
	int hitCount = breakpoint.getHitCount();
	createLabel(labelComposite,
	hitCount == -1 ? BreakpointMessages.HitCountNotAvailableMessage
	: Integer.toString(hitCount));
	// from debugging engine

	createTypeSpecificLabels(labelComposite);
	}

	protected void createTypeSpecificLabels(Composite parent)
	throws CoreException {
	// Nothing to do here
	}

	// Breakpoint information
	protected void createButtons(Composite parent) throws CoreException {
	Composite buttonsComposite = createComposite(parent, 1);

	enabledBreakpointButton = createCheckButton(buttonsComposite,
	BreakpointMessages.EnabledLabel);

	createTypeSpecificButtons(buttonsComposite);
	}

	protected void createTypeSpecificButtons(Composite parent) {

	}

	protected void createHitCountEditor(Composite parent) {
	Composite hitCountComposite = createComposite(parent, 4);

	// Hit count checking
	hitCountCheckingButton = createCheckButton(hitCountComposite,
	BreakpointMessages.BreakWhenHitCountLabel);

	hitCountCheckingButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateControlsState();
	}
	});

	hitConditionCombo = new Combo(hitCountComposite, SWT.READ_ONLY);

	// Hit condition
	hitConditionCombo.add(BreakpointMessages.HitConditionGreaterOrEqual,
	IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

	hitConditionCombo.add(BreakpointMessages.HitConditionEqual,
	IScriptBreakpoint.HIT_CONDITION_EQUAL);

	hitConditionCombo.add(BreakpointMessages.HitConditionMultiple,
	IScriptBreakpoint.HIT_CONDITION_MULTIPLE);

	hitConditionCombo
	.select(IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

	hitConditionCombo.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateControlsState();
	}
	});

	hitConditionCombo.setData(new GridData());

	// Hit value
	hitValueText = new Text(hitCountComposite, SWT.BORDER);
	hitValueText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true,
	false));

	hitValueText.addKeyListener(new KeyAdapter() {
	public void keyReleased(KeyEvent e) {
	updateControlsState();
	}
	});

	createLabel(hitCountComposite, BreakpointMessages.HitsLabel);
	}

	protected void createExpressionEditor(Composite parent) {
	Group group = new Group(parent, SWT.NONE);
	group.setLayout(new GridLayout(1, false));
	group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	enableExpressionButton = new Button(group, SWT.CHECK);
	enableExpressionButton.setText(BreakpointMessages.UseConditionLabel);
	enableExpressionButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateControlsState();
	}
	});

	expressionViewer = new ScriptSourceViewer(group, null, null, false,
	SWT.BORDER \| SWT.V_SCROLL \| SWT.H_SCROLL, null);

	IDLTKUILanguageToolkit toolkit = DLTKUILanguageManager
	.getLanguageToolkit(getNatureId());

	IDocument document = new Document();

	toolkit.getTextTools().setupDocumentPartitioner(document,
	toolkit.getPartitioningId());

	ScriptSourceViewerConfiguration config = toolkit
	.createSourceViwerConfiguration();

	expressionViewer.configure(config);
	expressionViewer.setDocument(document);

	expressionViewer.getControl().setLayoutData(
	new GridData(SWT.FILL, SWT.FILL, true, true));

	}

	protected IScriptBreakpoint getBreakpoint() {
	return (IScriptBreakpoint) getElement();
	}

	protected String getNatureId() {
	ScriptDebugManager manager = ScriptDebugManager.getInstance();
	return manager.getNatureByDebugModel(getBreakpoint()
	.getModelIdentifier());
	}

	protected Control createContents(Composite parent) {
	noDefaultAndApplyButton();
	Composite composite = createComposite(parent, 1);

	try {
	createLabels(composite);
	createButtons(composite);

	if (hasHitCountEditor()) {
	createHitCountEditor(composite);
	}

	if (hasExpressionEditor()) {
	createExpressionEditor(composite);
	}

	loadValues();
	updateControlsState();
	} catch (CoreException e) {
	// TODO: log exception
	}

	return composite;
	}

	protected boolean hasHitCountEditor() {
	return true;
	}

	protected boolean hasExpressionEditor() {
	return true;
	}

	protected void loadValues() throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	// Enabled
	enabledBreakpointButton.setSelection(breakpoint.isEnabled());

	// Hit conditions
	if (hasHitCountEditor()) {

	final int hitValue = breakpoint.getHitValue();
	if (hitValue != -1) {
	setHitValue(hitValue);
	setHitCondition(breakpoint.getHitCondition());
	setEnabledHitChecking(true);
	} else {
	setEnabledHitChecking(false);
	}
	}

	// Expression
	if (hasExpressionEditor()) {
	setExpressionState(breakpoint.getExpressionState());
	setExpression(breakpoint.getExpression());
	}
	}

	protected void saveValues() throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	breakpoint.setEnabled(getBreakointEnableState());

	if (hasHitCountEditor()) {
	breakpoint.setHitValue(getHitValue());
	breakpoint.setHitCondition(getHitCondition());
	}

	if (hasExpressionEditor()) {
	breakpoint.setExpression(getExpression());
	breakpoint.setExpressionState(getExpressionState());
	}
	}

	protected void updateControlsState() {
	// Hit count
	if (hasHitCountEditor()) {
	boolean hitChecking = hitCountCheckingButton.getSelection();
	hitConditionCombo.setEnabled(hitChecking);
	hitValueText.setEnabled(hitChecking);
	}

	// Expression
	if (hasExpressionEditor()) {
	boolean expressionEnabled = enableExpressionButton.getSelection();
	Control control = expressionViewer.getControl();
	control.setEnabled(expressionEnabled);
	}

	validateValues();
	}

	protected void validateValues() {
	boolean valid = true;
	String errorMessage = null;

	if (hasHitCountEditor()) {
	if (getEnabledHitChecking()) {
	try {
	getHitValue();
	} catch (NumberFormatException e) {
	valid = false;
	errorMessage = BreakpointMessages.InvalidNumberOfHits;
	}
	}
	}

	setValid(valid);
	setErrorMessage(errorMessage);
	}

	public boolean performOk() {
	try {
	ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
	public void run(IProgressMonitor monitor) throws CoreException {
	saveValues();
	DebugPlugin.getDefault().getBreakpointManager()
	.fireBreakpointChanged(getBreakpoint());
	}
	}, null, 0, null);
	} catch (CoreException e) {
	// TODO: log exception
	}

	return super.performOk();
	}
	}