Mercurial > projects > dwt-addons
view dwtx/draw2d/Ellipse.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 * Alex Selkov - Fix for Bug# 22701 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.draw2d.Ellipse; import dwt.dwthelper.utils; import dwtx.draw2d.geometry.Rectangle; import dwtx.draw2d.Shape; import dwtx.draw2d.Graphics; /** * An figure that draws an ellipse filling its bounds. */ public class Ellipse : Shape { /** * Constructs a new Ellipse with the default values of a Shape. * @since 2.0 */ public this() { } /** * Returns <code>true</code> if the given point (x,y) is contained within this ellipse. * @param x the x coordinate * @param y the y coordinate * @return <code>true</code>if the given point is contained */ public bool containsPoint(int x, int y) { if (!super.containsPoint(x, y)) return false; Rectangle r = getBounds(); long ux = x - r.x - r.width / 2; long uy = y - r.y - r.height / 2; return ((ux * ux) << 10) / (r.width * r.width) + ((uy * uy) << 10) / (r.height * r.height) <= 256; } /** * Fills the ellipse. * @see dwtx.draw2d.Shape#fillShape(dwtx.draw2d.Graphics) */ protected void fillShape(Graphics graphics) { graphics.fillOval(getBounds()); } /** * Outlines the ellipse. * @see dwtx.draw2d.Shape#outlineShape(dwtx.draw2d.Graphics) */ protected void outlineShape(Graphics graphics) { Rectangle r = Rectangle.SINGLETON; r.setBounds(getBounds()); r.width--; r.height--; r.shrink((lineWidth - 1) / 2, (lineWidth - 1) / 2); graphics.drawOval(r); } }