| /****************************************************************************** |
| * Copyright (c) 2006, 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 |
| ****************************************************************************/ |
| package org.eclipse.gmf.runtime.draw2d.ui.graphics; |
| |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Utility class for operations around using a <code>GC</code> |
| * |
| * @author sshaw, crevells |
| */ |
| public class GCUtilities { |
| |
| static private boolean checkedAdvancedGraphicsSupport = false; |
| |
| static private boolean platformSupportsAdvancedGraphics = false; |
| |
| |
| /** |
| * Returns true is advanced graphics is supported in this environment. This |
| * includes the OS supporting an advanced graphics library (usually an |
| * externally installed library such as Cairo or GDI+) |
| * |
| * @return true if advanced graphics is supported; false otherwise |
| */ |
| public static boolean supportsAdvancedGraphics() { |
| if (!checkedAdvancedGraphicsSupport) { |
| Shell shell = new Shell(); |
| GC gc = new GC(shell); |
| gc.setAdvanced(true); |
| platformSupportsAdvancedGraphics = (gc.getAdvanced() == true); |
| checkedAdvancedGraphicsSupport = true; |
| gc.dispose(); |
| shell.dispose(); |
| } |
| |
| return platformSupportsAdvancedGraphics; |
| } |
| } |