Mercurial > projects > dwt-samples
view snippets/button/Snippet294.d @ 120:1f0a7a472680
fix rm snippets from module statements.
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 20 Jul 2008 19:17:23 +0200 |
parents | 8cdaac0dc743 |
children |
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/******************************************************************************* * Copyright (c) 2000, 2008 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 * D Port: * Thomas Demmer <t_demmer AT web DOT de> *******************************************************************************/ module button.Snippet294; /* Port OK */ import dwt.DWT; import dwt.graphics.Image; import dwt.graphics.Region; import dwt.layout.FillLayout; import dwt.widgets.Button; import dwt.widgets.Display; import dwt.widgets.Event; import dwt.widgets.Listener; import dwt.widgets.Shell; import dwt.dwthelper.utils; import tango.util.Convert; void main(String[] args){ Snippet294.main(args); } /* * Region on a control: create a non-rectangular button * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ * * @since 3.4 */ public class Snippet294 { static int[] circle(int r, int offsetX, int offsetY) { int[] polygon = new int[8 * r + 4]; // x^2 + y^2 = r^2 for (int i = 0; i < 2 * r + 1; i++) { int x = i - r; int y = cast(int)Math.sqrt(cast(real)(r*r - x*x)); polygon[2*i] = offsetX + x; polygon[2*i+1] = offsetY + y; polygon[8*r - 2*i - 2] = offsetX + x; polygon[8*r - 2*i - 1] = offsetY - y; } return polygon; } public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("Regions on a Control"); shell.setLayout(new FillLayout()); shell.setBackground(display.getSystemColor(DWT.COLOR_DARK_RED)); Button b2 = new Button(shell, DWT.PUSH); b2.setText("Button with Regions"); // define a region that looks like a circle with two holes in ot Region region = new Region(); region.add(circle(67, 87, 77)); region.subtract(circle(20, 87, 47)); region.subtract(circle(20, 87, 113)); // define the shape of the button using setRegion b2.setRegion(region); b2.setLocation(100,50); b2.addListener(DWT.Selection, new class() Listener { public void handleEvent(Event e) { shell.close(); } }); shell.setSize(200,200); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } region.dispose(); display.dispose(); } }