| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.examples.javaeditor; |
| |
| |
| import org.eclipse.swt.graphics.Point; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextHover; |
| import org.eclipse.jface.text.ITextHoverExtension2; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.Region; |
| |
| /** |
| * Example implementation for an <code>ITextHover</code> which hovers over Java code. |
| */ |
| public class JavaTextHover implements ITextHover { |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @deprecated As of 3.4, replaced by |
| * {@link ITextHoverExtension2#getHoverInfo2(ITextViewer, IRegion)} |
| */ |
| @Deprecated |
| @Override |
| public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { |
| if (hoverRegion != null) { |
| try { |
| if (hoverRegion.getLength() > -1) |
| return textViewer.getDocument().get(hoverRegion.getOffset(), hoverRegion.getLength()); |
| } catch (BadLocationException x) { |
| } |
| } |
| return JavaEditorMessages.getString("JavaTextHover.emptySelection"); //$NON-NLS-1$ |
| } |
| |
| @Override |
| public IRegion getHoverRegion(ITextViewer textViewer, int offset) { |
| Point selection= textViewer.getSelectedRange(); |
| if (selection.x <= offset && offset < selection.x + selection.y) |
| return new Region(selection.x, selection.y); |
| return new Region(offset, 0); |
| } |
| } |