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/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.examples.javaeditor;
import org.eclipse.swt.graphics.Point;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextHover;
import org.eclipse.jface.text.ITextHoverExtension2;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.Region;
/**
* Example implementation for an <code>ITextHover</code> which hovers over Java code.
*/
public class JavaTextHover implements ITextHover {
/**
* {@inheritDoc}
*
* @deprecated As of 3.4, replaced by
* {@link ITextHoverExtension2#getHoverInfo2(ITextViewer, IRegion)}
*/
@Deprecated
@Override
public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
if (hoverRegion != null) {
try {
if (hoverRegion.getLength() > -1)
return textViewer.getDocument().get(hoverRegion.getOffset(), hoverRegion.getLength());
} catch (BadLocationException x) {
}
}
return JavaEditorMessages.getString("JavaTextHover.emptySelection"); //$NON-NLS-1$
}
@Override
public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
Point selection= textViewer.getSelectedRange();
if (selection.x <= offset && offset < selection.x + selection.y)
return new Region(selection.x, selection.y);
return new Region(offset, 0);
}
}
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