| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.internal.debug.ui.display; |
| |
| |
| import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.text.ITextViewer; |
| |
| /** |
| * An implementation of a data display for a text viewer |
| */ |
| public class DataDisplay implements IDataDisplay { |
| |
| /** |
| * The text viewer this data display works on |
| */ |
| private ITextViewer fTextViewer; |
| |
| /** |
| * Constructs a data display for the given text viewer. |
| * |
| * @param viewer text viewer |
| */ |
| public DataDisplay(ITextViewer viewer) { |
| setTextViewer(viewer); |
| } |
| |
| /** |
| * @see IDataDisplay#clear() |
| */ |
| public void clear() { |
| IDocument document= getTextViewer().getDocument(); |
| if (document != null) { |
| document.set(""); //$NON-NLS-1$ |
| } |
| } |
| |
| /** |
| * @see IDataDisplay#displayExpression(String) |
| */ |
| public void displayExpression(String expression) { |
| IDocument document= fTextViewer.getDocument(); |
| int offset= document.getLength(); |
| try { |
| // add a cariage return if needed. |
| if (offset != document.getLineInformationOfOffset(offset).getOffset()) { |
| expression= System.getProperty("line.separator") + expression.trim(); //$NON-NLS-1$ |
| } |
| document.replace(offset, 0, expression); |
| fTextViewer.setSelectedRange(offset + expression.length(), 0); |
| fTextViewer.revealRange(offset, expression.length()); |
| } catch (BadLocationException ble) { |
| JDIDebugUIPlugin.log(ble); |
| } |
| } |
| |
| /** |
| * @see IDataDisplay#displayExpressionValue(String) |
| */ |
| public void displayExpressionValue(String value) { |
| value= System.getProperty("line.separator") + '\t' + value; //$NON-NLS-1$ |
| ITextSelection selection= (ITextSelection)fTextViewer.getSelectionProvider().getSelection(); |
| |
| int offset= selection.getOffset() + selection.getLength(); |
| int length= value.length(); |
| try { |
| fTextViewer.getDocument().replace(offset, 0, value); |
| } catch (BadLocationException ble) { |
| JDIDebugUIPlugin.log(ble); |
| } |
| fTextViewer.setSelectedRange(offset + length, 0); |
| fTextViewer.revealRange(offset, length); |
| } |
| |
| /** |
| * Sets the text viewer for this data display |
| * |
| * @param viewer text viewer |
| */ |
| private void setTextViewer(ITextViewer viewer) { |
| fTextViewer = viewer; |
| } |
| |
| /** |
| * Returns the text viewer for this data display |
| * |
| * @return text viewer |
| */ |
| protected ITextViewer getTextViewer() { |
| return fTextViewer; |
| } |
| } |