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

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/PHPAnnotationHover.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/PHPAnnotationHover.java
new file mode 100644
index 0000000..7972adf
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/PHPAnnotationHover.java
@@ -0,0 +1,177 @@
+package net.sourceforge.phpeclipse.phpeditor;
+
+/**********************************************************************
+ Copyright (c) 2000, 2002 IBM Corp. 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 implementation
+ www.phpeclipse.de
+ **********************************************************************/
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.Position;
+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.texteditor.MarkerAnnotation;
+
+/**
+ * The PHPAnnotationHover provides the hover support for PHP editors.
+ */
+
+public class PHPAnnotationHover implements IAnnotationHover {
+
+	/*
+	 * (non-Javadoc) Method declared on IAnnotationHover
+	 */
+	// public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) {
+	// IDocument document= sourceViewer.getDocument();
+	//
+	// try {
+	// IRegion info= document.getLineInformation(lineNumber);
+	// return document.get(info.getOffset(), info.getLength());
+	// } catch (BadLocationException x) {
+	// }
+	//
+	// return null;
+	// }
+	//	
+	static final int MAX_INFO_LENGTH = 80;
+
+	/**
+	 * @see org.eclipse.jface.text.source.IAnnotationHover#getHoverInfo(org.eclipse.jface.text.source.ISourceViewer,
+	 *      int)
+	 */
+
+	public String getHoverInfo(ISourceViewer viewer, int line) {
+		String info = null;
+		List markers = getMarkersForLine(viewer, line);
+		if (markers != null) {
+			info = "";
+			for (int i = 0; i < markers.size(); i++) {
+				IMarker marker = (IMarker) markers.get(i);
+				String message = marker.getAttribute(IMarker.MESSAGE,
+						(String) null);
+				if (message != null && message.trim().length() > 0) {
+
+					if (message.length() > MAX_INFO_LENGTH) {
+						message = splitMessage(message);
+					}
+					info += message;
+
+					if (i != markers.size() - 1) {
+						info += "\n";
+					}
+				}
+			}
+		}
+		return info;
+	}
+
+	private String splitMessage(String message) {
+		String result = "";
+
+		if (message.length() <= MAX_INFO_LENGTH) {
+			return message;
+		}
+
+		String tmpStr = new String(message);
+
+		while (tmpStr.length() > MAX_INFO_LENGTH) {
+
+			int spacepos = tmpStr.indexOf(" ", MAX_INFO_LENGTH);
+
+			if (spacepos != -1) {
+				result += tmpStr.substring(0, spacepos) + "\n";
+				tmpStr = tmpStr.substring(spacepos);
+			} else {
+				result += tmpStr.substring(0, MAX_INFO_LENGTH) + "\n";
+				tmpStr = tmpStr.substring(MAX_INFO_LENGTH);
+			}
+
+		}
+
+		result += tmpStr;
+
+		return result;
+	}
+
+	/**
+	 * Returns all markers which includes the ruler's line of activity.
+	 */
+	protected List getMarkersForLine(ISourceViewer aViewer, int aLine) {
+		List markers = new ArrayList();
+		IAnnotationModel model = aViewer.getAnnotationModel();
+		if (model != null) {
+			Iterator e = model.getAnnotationIterator();
+			while (e.hasNext()) {
+				Object o = e.next();
+				if (o instanceof MarkerAnnotation) {
+					MarkerAnnotation a = (MarkerAnnotation) o;
+					if (compareRulerLine(model.getPosition(a), aViewer
+							.getDocument(), aLine) != 0) {
+						markers.add(a.getMarker());
+					}
+				}
+			}
+		}
+		return markers;
+	}
+
+	/**
+	 * Returns one marker which includes the ruler's line of activity.
+	 */
+	protected IMarker getMarkerForLine(ISourceViewer aViewer, int aLine) {
+		IMarker marker = null;
+		IAnnotationModel model = aViewer.getAnnotationModel();
+		if (model != null) {
+			Iterator e = model.getAnnotationIterator();
+			while (e.hasNext()) {
+				Object o = e.next();
+				if (o instanceof MarkerAnnotation) {
+					MarkerAnnotation a = (MarkerAnnotation) o;
+					if (compareRulerLine(model.getPosition(a), aViewer
+							.getDocument(), aLine) != 0) {
+						marker = a.getMarker();
+					}
+				}
+			}
+		}
+		return marker;
+	}
+
+	/**
+	 * Returns distance of given line to specified position (1 = same line, 2 =
+	 * included in given position, 0 = not related).
+	 */
+	protected int compareRulerLine(Position aPosition, IDocument aDocument,
+			int aLine) {
+		int distance = 0;
+		if (aPosition.getOffset() > -1 && aPosition.getLength() > -1) {
+			try {
+				int markerLine = aDocument.getLineOfOffset(aPosition
+						.getOffset());
+				if (aLine == markerLine) {
+					distance = 1;
+				} else if (markerLine <= aLine
+						&& aLine <= aDocument.getLineOfOffset(aPosition
+								.getOffset()
+								+ aPosition.getLength())) {
+					distance = 2;
+				}
+			} catch (BadLocationException e) {
+			}
+		}
+		return distance;
+	}
+}