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comparison dwtx/draw2d/ConnectionAnchor.d @ 98:95307ad235d9

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Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
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96:b492ba44e44d 98:95307ad235d9
1 /*******************************************************************************
2 * Copyright (c) 2000, 2005 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module dwtx.draw2d.ConnectionAnchor;
14
15 import dwt.dwthelper.utils;
16
17 import dwtx.draw2d.geometry.Point;
18 import dwtx.draw2d.AnchorListener;
19 import dwtx.draw2d.IFigure;
20
21 /**
22 * An object to which a {@link Connection} will be anchored. If the ConnectionAnchor
23 * moves, the Connection should move with it.
24 */
25 public interface ConnectionAnchor {
26
27 /**
28 * Adds a listener interested in the movement of this ConnectionAnchor.
29 * @param listener The AnchorListener to be added
30 */
31 void addAnchorListener(AnchorListener listener);
32
33 /**
34 * Returns the location where the Connection should be anchored in absolute coordinates.
35 * The anchor may use the given reference Point to calculate this location.
36 * @param reference The reference Point in absolute coordinates
37 * @return The anchor's location
38 */
39 Point getLocation(Point reference);
40
41 /**
42 * Returns the IFigure that contains this ConnectionAnchor. Moving this figure will cause
43 * the anchor to move with it.
44 * @return The IFigure that contains this ConnectionAnchor
45 */
46 IFigure getOwner();
47
48 /**
49 * Returns the reference point for this anchor in absolute coordinates. This might be used
50 * by another anchor to determine its own location (i.e. {@link ChopboxAnchor}).
51 * @return The reference Point
52 */
53 Point getReferencePoint();
54
55 /**
56 * Removes the listener.
57 * @param listener The AnchorListener to be removed
58 */
59 void removeAnchorListener(AnchorListener listener);
60
61 }