X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLAnnotationHover.java b/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLAnnotationHover.java
new file mode 100644
index 0000000..11d45ca
--- /dev/null
+++ b/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLAnnotationHover.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2003-2004 Christopher Lenz 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:
+ *     Christopher Lenz - initial API and implementation
+ * 
+ * $Id: XMLAnnotationHover.java,v 1.1 2004-09-02 18:28:03 jsurfer Exp $
+ */
+package net.sourceforge.phpeclipse.xml.ui.internal.text;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+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;
+
+
+/**
+ * Implements simple annotation hover to show the associated messages.
+ */
+public class XMLAnnotationHover implements IAnnotationHover {
+	/*
+	 * @see org.eclipse.jface.text.source.IAnnotationHover#getHoverInfo(org.eclipse.jface.text.source.ISourceViewer, int)
+	 */
+	public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) {
+		List annotations = getAnnotationsForLine(sourceViewer, lineNumber);
+		if (annotations != null) {
+			List messages = new ArrayList();
+
+			Iterator e = annotations.iterator();
+			while (e.hasNext()) {
+				Annotation annotation = (Annotation) e.next();
+
+				String message = annotation.getText();
+				if (message != null) {
+					message = message.trim();
+					if (message.length() > 0) {
+						messages.add(message);
+					}
+				}
+			}
+
+			if (messages.size() == 1) {
+				return (String) messages.get(0);
+			}
+
+			if (messages.size() > 1) {
+				return formatMessages(messages);
+			}
+		}
+
+		return null;
+	}
+
+	/**
+	 * Formats multiple annotation messages for display.
+	 */
+	private String formatMessages(List messages) {
+		StringBuffer buffer = new StringBuffer();
+
+		Iterator e = messages.iterator();
+		while (e.hasNext())  {
+			buffer.append("- "); //$NON-NLS-1$
+			buffer.append(e.next());
+			buffer.append('\n');
+		}
+
+		return buffer.toString();
+	}
+
+	/**
+	 * Returns annotations for the ruler's line of activity.
+	 */
+	private List getAnnotationsForLine(ISourceViewer viewer, int line) {
+		IDocument document = viewer.getDocument();
+
+		IAnnotationModel model = viewer.getAnnotationModel();
+		if (model == null) {
+			return null;
+		}
+
+		List retVal = new ArrayList();
+
+		Iterator e = new XMLAnnotationIterator(model, true);
+		while (e.hasNext()) {
+			Annotation a = (Annotation) e.next();
+
+			Position position = model.getPosition(a);
+			if (position != null) {
+				try {
+					int annotationLine = document
+							.getLineOfOffset(position.getOffset());
+					if (annotationLine == line) {
+						retVal.add(a);
+					}
+				} catch (BadLocationException e1) {
+					// ignore
+				}
+			}
+		}
+
+		return retVal;
+	}
+}