Mercurial > projects > dwt-addons
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwtx/draw2d/ConnectionAnchor.d Sun Aug 03 00:52:14 2008 +0200 @@ -0,0 +1,61 @@ +/******************************************************************************* + * 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); + +}