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comparison dwtx/draw2d/Bendpoint.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.Bendpoint;
14
15 import dwt.dwthelper.utils;
16
17 import dwtx.draw2d.geometry.Point;
18
19 /**
20 * A helper used to calculate the point at which a {@link dwtx.draw2d.Connection}
21 * should bend. A bendpoint returns a point <em>relative</em> to the connection figure on
22 * which it is being used. This was chosen so that fixed bendpoints would be easy to
23 * implement. A fixed bendpoint will have a fixed x and y value. Although the absolute x
24 * and y location change during zoom and scrolling, the relative values stay the same.
25 */
26 public interface Bendpoint {
27
28 /**
29 * Returns the location of the bendpoint <em>relative</em> to the connection. The returned
30 * value may be by reference. The caller should NOT modify the returned value.
31 *
32 * @return the location of the bendpoint relative to the Connection
33 */
34 Point getLocation();
35
36 }