--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.text;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
+import net.sourceforge.phpeclipse.phpeditor.IJavaAnnotation;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.text.source.Annotation;
+import org.eclipse.jface.text.source.IAnnotationHover;
+import org.eclipse.jface.text.source.IAnnotationModel;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.ui.externaltools.internal.ant.editor.derived.HTMLPrinter;
+
+// TODO: delete this class ? we use PHPAnnotationHover instead !
+/**
+ * Determines all markers for the given line and collects, concatenates, and formates
+ * their messages.
+ */
+public class JavaAnnotationHover implements IAnnotationHover {
+
+ /**
+ * Returns the distance to the ruler line.
+ */
+ protected int compareRulerLine(Position position, IDocument document, int line) {
+
+ if (position.getOffset() > -1 && position.getLength() > -1) {
+ try {
+ int javaAnnotationLine= document.getLineOfOffset(position.getOffset());
+ if (line == javaAnnotationLine)
+ return 1;
+ if (javaAnnotationLine <= line && line <= document.getLineOfOffset(position.getOffset() + position.getLength()))
+ return 2;
+ } catch (BadLocationException x) {
+ }
+ }
+
+ return 0;
+ }
+
+ /**
+ * Selects a set of markers from the two lists. By default, it just returns
+ * the set of exact matches.
+ */
+ protected List select(List exactMatch, List including) {
+ return exactMatch;
+ }
+
+ /**
+ * Returns one marker which includes the ruler's line of activity.
+ */
+ protected List getJavaAnnotationsForLine(ISourceViewer viewer, int line) {
+
+ IDocument document= viewer.getDocument();
+ IAnnotationModel model= viewer.getAnnotationModel();
+
+ if (model == null)
+ return null;
+
+ List exact= new ArrayList();
+ List including= new ArrayList();
+
+ Iterator e= model.getAnnotationIterator();
+ HashMap messagesAtPosition= new HashMap();
+ while (e.hasNext()) {
+ Object o= e.next();
+ if (o instanceof IJavaAnnotation) {
+ IJavaAnnotation a= (IJavaAnnotation)o;
+ if (!a.hasOverlay()) {
+ Position position= model.getPosition((Annotation)a);
+ if (position == null)
+ continue;
+
+ if (isDuplicateJavaAnnotation(messagesAtPosition, position, a.getMessage()))
+ continue;
+
+ switch (compareRulerLine(position, document, line)) {
+ case 1:
+ exact.add(a);
+ break;
+ case 2:
+ including.add(a);
+ break;
+ }
+ }
+ }
+ }
+
+ return select(exact, including);
+ }
+
+ private boolean isDuplicateJavaAnnotation(Map messagesAtPosition, Position position, String message) {
+ if (messagesAtPosition.containsKey(position)) {
+ Object value= messagesAtPosition.get(position);
+ if (message.equals(value))
+ return true;
+
+ if (value instanceof List) {
+ List messages= (List)value;
+ if (messages.contains(message))
+ return true;
+ else
+ messages.add(message);
+ } else {
+ ArrayList messages= new ArrayList();
+ messages.add(value);
+ messages.add(message);
+ messagesAtPosition.put(position, messages);
+ }
+ } else
+ messagesAtPosition.put(position, message);
+ return false;
+ }
+
+ /*
+ * @see IVerticalRulerHover#getHoverInfo(ISourceViewer, int)
+ */
+ public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) {
+ List javaAnnotations= getJavaAnnotationsForLine(sourceViewer, lineNumber);
+ if (javaAnnotations != null) {
+
+ if (javaAnnotations.size() == 1) {
+
+ // optimization
+ IJavaAnnotation javaAnnotation= (IJavaAnnotation) javaAnnotations.get(0);
+ String message= javaAnnotation.getMessage();
+ if (message != null && message.trim().length() > 0)
+ return formatSingleMessage(message);
+
+ } else {
+
+ List messages= new ArrayList();
+
+ Iterator e= javaAnnotations.iterator();
+ while (e.hasNext()) {
+ IJavaAnnotation javaAnnotation= (IJavaAnnotation) e.next();
+ String message= javaAnnotation.getMessage();
+ if (message != null && message.trim().length() > 0)
+ messages.add(message.trim());
+ }
+
+ if (messages.size() == 1)
+ return formatSingleMessage((String) messages.get(0));
+
+ if (messages.size() > 1)
+ return formatMultipleMessages(messages);
+ }
+ }
+
+ return null;
+ }
+
+ /*
+ * Formats a message as HTML text.
+ */
+ private String formatSingleMessage(String message) {
+ StringBuffer buffer= new StringBuffer();
+ HTMLPrinter.addPageProlog(buffer);
+ HTMLPrinter.addParagraph(buffer, HTMLPrinter.convertToHTMLContent(message));
+ HTMLPrinter.addPageEpilog(buffer);
+ return buffer.toString();
+ }
+
+ /*
+ * Formats several message as HTML text.
+ */
+ private String formatMultipleMessages(List messages) {
+ StringBuffer buffer= new StringBuffer();
+ HTMLPrinter.addPageProlog(buffer);
+ HTMLPrinter.addParagraph(buffer, HTMLPrinter.convertToHTMLContent(PHPUIMessages.getString("JavaAnnotationHover.multipleMarkersAtThisLine"))); //$NON-NLS-1$
+
+ HTMLPrinter.startBulletList(buffer);
+ Iterator e= messages.iterator();
+ while (e.hasNext())
+ HTMLPrinter.addBullet(buffer, HTMLPrinter.convertToHTMLContent((String) e.next()));
+ HTMLPrinter.endBulletList(buffer);
+
+ HTMLPrinter.addPageEpilog(buffer);
+ return buffer.toString();
+ }
+}
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