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The source code/******************************************************************************* * Copyright (c) 2000, 2006 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.pde.internal.ui.editor.text; import java.util.ArrayList; import java.util.Iterator; import org.eclipse.core.resources.IMarker; import org.eclipse.jface.text.*; import org.eclipse.jface.text.source.*; import org.eclipse.ui.texteditor.MarkerAnnotation; public class AnnotationHover implements IAnnotationHover { public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) { String[] messages = getMessagesForLine(sourceViewer, lineNumber); if (messages.length == 0) return null; StringBuffer buffer = new StringBuffer(); for (int i = 0; i < messages.length; i++) { buffer.append(messages[i]); if (i < messages.length - 1) buffer.append(System.getProperty("line.separator")); //$NON-NLS-1$ } return buffer.toString(); } private String[] getMessagesForLine(ISourceViewer viewer, int line) { IDocument document = viewer.getDocument(); IAnnotationModel model = viewer.getAnnotationModel(); if (model == null) return new String[0]; ArrayList messages = new ArrayList(); Iterator iter = model.getAnnotationIterator(); while (iter.hasNext()) { Object object = iter.next(); if (object instanceof MarkerAnnotation) { MarkerAnnotation annotation = (MarkerAnnotation) object; if (compareRulerLine(model.getPosition(annotation), document, line)) { IMarker marker = annotation.getMarker(); String message = marker.getAttribute(IMarker.MESSAGE, (String) null); if (message != null && message.trim().length() > 0) messages.add(message); } } } return (String[]) messages.toArray(new String[messages.size()]); } private boolean compareRulerLine(Position position, IDocument document, int line) { try { if (position.getOffset() > -1 && position.getLength() > -1) { return document.getLineOfOffset(position.getOffset()) == line; } } catch (BadLocationException e) { } return false; } } |
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