Mercurial > projects > dwt-addons
view dwtx/draw2d/ArrowLocator.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.ArrowLocator; import dwt.dwthelper.utils; import dwtx.draw2d.geometry.PointList; import dwtx.draw2d.ConnectionLocator; import dwtx.draw2d.IFigure; import dwtx.draw2d.Connection; import dwtx.draw2d.RotatableDecoration; /** * Locator used to place a {@link RotatableDecoration} on a {@link Connection}. The * decoration can be placed at the source or target end of the connection figure. The * default connection implementation uses a {@link DelegatingLayout} which requires * locators. */ public class ArrowLocator : ConnectionLocator { /** * Constructs an ArrowLocator associated with passed connection and tip location (either * {@link ConnectionLocator#SOURCE} or {@link ConnectionLocator#TARGET}). * * @param connection The connection associated with the locator * @param location Location of the arrow decoration * @since 2.0 */ public this(Connection connection, int location) { super(connection, location); } /** * Relocates the passed in figure (which must be a {@link RotatableDecoration}) at either * the start or end of the connection. * @param target The RotatableDecoration to relocate */ public void relocate(IFigure target) { PointList points = getConnection().getPoints(); RotatableDecoration arrow = cast(RotatableDecoration)target; arrow.setLocation(getLocation(points)); if (getAlignment() is SOURCE) arrow.setReferencePoint(points.getPoint(1)); else if (getAlignment() is TARGET) arrow.setReferencePoint(points.getPoint(points.size() - 2)); } }