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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwtx.jface.text.IViewportListener;
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14
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15 import dwt.dwthelper.utils;
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16
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17
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18 /**
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19 * Registered with a text viewer, view port listeners are informed about changes
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20 * of a text viewer's view port. The view port is that portion of the viewer's
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21 * document which is visible in the viewer.
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22 * <p>
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23 * Clients may implement this interface.</p>
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24 *
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25 * @see dwtx.jface.text.ITextViewer
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26 */
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27 public interface IViewportListener {
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28
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29 /**
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30 * Informs about view port changes. The given vertical position is the new
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31 * vertical scrolling offset measured in pixels.
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32 *
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33 * @param verticalOffset the vertical offset measured in pixels
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34 */
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35 void viewportChanged(int verticalOffset);
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36 }
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