Mercurial > projects > dwt-addons
view dwtx/draw2d/ConnectionAnchor.d @ 98:95307ad235d9
Added Draw2d code, still work in progress
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 03 Aug 2008 00:52:14 +0200 |
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/******************************************************************************* * Copyright (c) 2000, 2005 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.draw2d.ConnectionAnchor; import dwt.dwthelper.utils; import dwtx.draw2d.geometry.Point; import dwtx.draw2d.AnchorListener; import dwtx.draw2d.IFigure; /** * An object to which a {@link Connection} will be anchored. If the ConnectionAnchor * moves, the Connection should move with it. */ public interface ConnectionAnchor { /** * Adds a listener interested in the movement of this ConnectionAnchor. * @param listener The AnchorListener to be added */ void addAnchorListener(AnchorListener listener); /** * Returns the location where the Connection should be anchored in absolute coordinates. * The anchor may use the given reference Point to calculate this location. * @param reference The reference Point in absolute coordinates * @return The anchor's location */ Point getLocation(Point reference); /** * Returns the IFigure that contains this ConnectionAnchor. Moving this figure will cause * the anchor to move with it. * @return The IFigure that contains this ConnectionAnchor */ IFigure getOwner(); /** * Returns the reference point for this anchor in absolute coordinates. This might be used * by another anchor to determine its own location (i.e. {@link ChopboxAnchor}). * @return The reference Point */ Point getReferencePoint(); /** * Removes the listener. * @param listener The AnchorListener to be removed */ void removeAnchorListener(AnchorListener listener); }