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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.texteditor;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.source.ILineRange;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.LineChangeHover;
/**
* Change hover for text editors. Respects tab settings and text editor font.
*
* @since 3.0
*/
public class TextChangeHover extends LineChangeHover {
/** The last created information control. */
private int fLastScrollIndex= 0;
/*
* @see org.eclipse.jface.text.source.LineChangeHover#getTabReplacement()
*/
protected String getTabReplacement() {
return Character.toString('\t');
}
/*
* @see org.eclipse.jface.text.source.LineChangeHover#getHoverInfo(org.eclipse.jface.text.source.ISourceViewer, org.eclipse.jface.text.source.ILineRange, int)
*/
public Object getHoverInfo(ISourceViewer sourceViewer, ILineRange lineRange, int visibleLines) {
fLastScrollIndex= sourceViewer.getTextWidget().getHorizontalPixel();
return super.getHoverInfo(sourceViewer, lineRange, visibleLines);
}
/*
* @see org.eclipse.jface.text.source.IAnnotationHoverExtension#getHoverControlCreator()
*/
public IInformationControlCreator getHoverControlCreator() {
return new IInformationControlCreator() {
public IInformationControl createInformationControl(Shell parent) {
SourceViewerInformationControl control= new SourceViewerInformationControl(parent, JFaceResources.TEXT_FONT);
control.setHorizontalScrollPixel(fLastScrollIndex);
return control;
}
};
}
}
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