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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/OverviewRulerHoverManager.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/OverviewRulerHoverManager.java
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/OverviewRulerHoverManager.java
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+/*
+ * 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 v0.5
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v05.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ */
+package net.sourceforge.phpeclipse.phpeditor;
+
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+
+import org.eclipse.jface.text.IInformationControlCreator;
+import org.eclipse.jface.text.source.AnnotationBarHoverManager;
+import org.eclipse.jface.text.source.IAnnotationHover;
+import org.eclipse.jface.text.source.ISourceViewer;
+
+/**
+ * This manager controls the layout, content, and visibility of an information
+ * control in reaction to mouse hover events issued by the overview ruler of a
+ * source viewer.
+ * 
+ * @since 2.1
+ */
+class OverviewRulerHoverManager extends AnnotationBarHoverManager {
+
+	/**
+	 * Creates an overview hover manager with the given parameters. In addition,
+	 * the hovers anchor is RIGHT and the margin is 5 points to the right.
+	 *
+	 * @param ruler the overview ruler this manager connects to
+	 * @param sourceViewer the source viewer this manager connects to
+	 * @param annotationHover the annotation hover providing the information to be displayed
+	 * @param creator the information control creator
+	 */
+	public OverviewRulerHoverManager(OverviewRuler ruler, ISourceViewer sourceViewer, IAnnotationHover annotationHover, IInformationControlCreator creator) {
+		super(ruler, sourceViewer, annotationHover, creator);
+	}
+	
+	/*
+	 * @see AbstractHoverInformationControlManager#computeInformation()
+	 */
+	protected void computeInformation() {
+		Point location= getHoverEventLocation();
+		int line= getVerticalRulerInfo().toDocumentLineNumber(location.y);
+		setInformation(getAnnotationHover().getHoverInfo(getSourceViewer(), line), computeArea(location.y));
+	}
+
+	/**
+	 * Determines graphical area covered for which the hover is valid.
+	 *
+	 * @param y-coordinate in the vertical ruler
+	 * @return the graphical extend where the hover is valid
+	 */
+	private Rectangle computeArea(int y) {
+		// This is ok (see constructor)
+		OverviewRuler overviewRuler= (OverviewRuler)getVerticalRulerInfo();
+
+		int hover_height= overviewRuler.getAnnotationHeight();
+		int hover_width= getVerticalRulerInfo().getControl().getSize().x;
+
+		// Calculate y-coordinate for hover
+		int hover_y= y;
+		boolean hasAnnotation= true;
+		while (hasAnnotation && hover_y > y - hover_height) {
+			hover_y--;
+			hasAnnotation= overviewRuler.hasAnnotationAt(hover_y);
+		}
+		hover_y++;
+			
+		return new Rectangle(0, hover_y, hover_width, hover_height);
+	}
+}